Fix typo in upgrading page
diff --git a/src/content/engine/2.0/upgrading.mdtext b/src/content/engine/2.0/upgrading.mdtext
index 4a28f74..3cb2905 100644
--- a/src/content/engine/2.0/upgrading.mdtext
+++ b/src/content/engine/2.0/upgrading.mdtext
@@ -46,7 +46,7 @@
 + the hypen ( `-` ) cannot be used in variable names anymore
 + method arguments can be arithmetic expressions
 + method arguments are now converted as needed between all main basic Java standard types (booleans, numbers and strings). If you want to revert to the 1.x behavior, set the property `runtime.conversion.handler = none`.
-+ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbing` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
++ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbling` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
 + the #foreach predefined references `$velocityCount` and `$velocityHasNext` have been removed. Use `$foreach.count` (1-based), `$foreach.index` (0-based) and `foreach.hasNext()`.
 + Velocimacro arguments are now evaluated only once (instead of each time they were referenced inside the macro body as was the case for v1.7) and passed by value (or more precisely as reference after evaluation).
 + Velocimacros do not anymore have a *proxy context* of their own - if they do insert new values in the context, and then call an external code changing those values, they will now see the new values.
diff --git a/src/content/engine/2.1/upgrading.mdtext b/src/content/engine/2.1/upgrading.mdtext
index d784427..d81d89d 100644
--- a/src/content/engine/2.1/upgrading.mdtext
+++ b/src/content/engine/2.1/upgrading.mdtext
@@ -97,7 +97,7 @@
 + the hypen ( `-` ) cannot be used in variable names anymore (see 2.1 for an 1.7 compatibility flag).
 + method arguments can be arithmetic expressions
 + method arguments are now converted as needed between all main basic Java standard types (booleans, numbers and strings). If you want to revert to the 1.x behavior, set the property `runtime.conversion.handler.class = none`.
-+ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbing` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
++ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbling` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
 + the #foreach predefined references `$velocityCount` and `$velocityHasNext` have been removed. Use `$foreach.count` (1-based), `$foreach.index` (0-based) and `foreach.hasNext()`.
 + Velocimacro arguments are now evaluated only once (instead of each time they were referenced inside the macro body as was the case for v1.7) and passed by value (or more precisely as reference after evaluation).
 + Velocimacros do not anymore have a *proxy context* of their own - if they do insert new values in the context, and then call an external code changing those values, they will now see the new values.
diff --git a/src/content/engine/2.2/upgrading.mdtext b/src/content/engine/2.2/upgrading.mdtext
index c64f046..acc7a6c 100644
--- a/src/content/engine/2.2/upgrading.mdtext
+++ b/src/content/engine/2.2/upgrading.mdtext
@@ -144,7 +144,7 @@
 + the hypen ( `-` ) cannot be used in variable names anymore (see 2.1 for an 1.7 compatibility flag).
 + method arguments can be arithmetic expressions
 + method arguments are now converted as needed between all main basic Java standard types (booleans, numbers and strings). If you want to revert to the 1.x behavior, set the property `runtime.conversion.handler.class = none`.
-+ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbing` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
++ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbling` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
 + the #foreach predefined references `$velocityCount` and `$velocityHasNext` have been removed. Use `$foreach.count` (1-based), `$foreach.index` (0-based) and `foreach.hasNext()`.
 + Velocimacro arguments are now evaluated only once (instead of each time they were referenced inside the macro body as was the case for v1.7) and passed by value (or more precisely as reference after evaluation).
 + Velocimacros do not anymore have a *proxy context* of their own - if they do insert new values in the context, and then call an external code changing those values, they will now see the new values (see 2.2 for the velicomacro.enable_bc_mode backward compatibility flag).
diff --git a/src/content/engine/2.3/upgrading.mdtext b/src/content/engine/2.3/upgrading.mdtext
index dbba68a..ac5f83c 100644
--- a/src/content/engine/2.3/upgrading.mdtext
+++ b/src/content/engine/2.3/upgrading.mdtext
@@ -148,7 +148,7 @@
 + the hypen ( `-` ) cannot be used in variable names anymore (see 2.1 for an 1.7 compatibility flag).
 + method arguments can be arithmetic expressions
 + method arguments are now converted as needed between all main basic Java standard types (booleans, numbers and strings). If you want to revert to the 1.x behavior, set the property `runtime.conversion.handler.class = none`.
-+ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbing` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
++ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbling` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
 + the #foreach predefined references `$velocityCount` and `$velocityHasNext` have been removed. Use `$foreach.count` (1-based), `$foreach.index` (0-based) and `foreach.hasNext()`.
 + Velocimacro arguments are now evaluated only once (instead of each time they were referenced inside the macro body as was the case for v1.7) and passed by value (or more precisely as reference after evaluation).
 + Velocimacros do not anymore have a *proxy context* of their own - if they do insert new values in the context, and then call an external code changing those values, they will now see the new values (see 2.2 for the velocimacro.enable_bc_mode backward compatibility flag).
diff --git a/src/content/engine/devel/upgrading.mdtext b/src/content/engine/devel/upgrading.mdtext
index 93c275c..5e6137e 100644
--- a/src/content/engine/devel/upgrading.mdtext
+++ b/src/content/engine/devel/upgrading.mdtext
@@ -144,7 +144,7 @@
 + the hypen ( `-` ) cannot be used in variable names anymore (see 2.1 for an 1.7 compatibility flag).
 + method arguments can be arithmetic expressions
 + method arguments are now converted as needed between all main basic Java standard types (booleans, numbers and strings). If you want to revert to the 1.x behavior, set the property `runtime.conversion.handler.class = none`.
-+ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbing` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
++ space gobbling (to control the indentation of generated code) is now configurable via the `space.gobbling` configuration key, which can take the following values: `none`, `bc` (aka. backward compatible), `lines` and `structured`. See the related documentation section for details. To maximize backward compatibility with 1.x, set it to `bc`.
 + the #foreach predefined references `$velocityCount` and `$velocityHasNext` have been removed. Use `$foreach.count` (1-based), `$foreach.index` (0-based) and `foreach.hasNext()`.
 + Velocimacro arguments are now evaluated only once (instead of each time they were referenced inside the macro body as was the case for v1.7) and passed by value (or more precisely as reference after evaluation).
 + Velocimacros do not anymore have a *proxy context* of their own - if they do insert new values in the context, and then call an external code changing those values, they will now see the new values (see 2.2 for the velocimacro.enable_bc_mode backward compatibility flag).