[UNOMI-592] - a tip for building on non-English Windows env (#435)

* UNOMI-592: a tip for building on non-English Windows env

* UNOMI-592 : correct set window command examples for multiple jvm args
diff --git a/manual/src/archives/1.5/asciidoc/building-and-deploying.adoc b/manual/src/archives/1.5/asciidoc/building-and-deploying.adoc
index 19d9a8d..807fa95 100644
--- a/manual/src/archives/1.5/asciidoc/building-and-deploying.adoc
+++ b/manual/src/archives/1.5/asciidoc/building-and-deploying.adoc
@@ -48,7 +48,20 @@
 +
 This will compile Apache Unomi without running the tests and takes less
  time to build.
-
++
+TIP: On a non-English Windows env, the Asciidoctor Maven Plugin may fail to
+     generate manuals due to an encoding conversion issue.
+     To solve this issue, we recommend setting the *file.encoding* system property
+     to _UTF-8_ like the following examples before issuing the commands shown above.
++
+[source]
+----
+     > set MAVEN_OPTS=-Dfile.encoding=UTF-8
+     or
+     > set MAVEN_OPTS=-Dfile.encoding=UTF-8 -Xmx2048m
+     ...
+----
++
 . The distributions will be available under "package/target" directory.
 
 ==== Installing an ElasticSearch server
diff --git a/manual/src/archives/1.6/asciidoc/building-and-deploying.adoc b/manual/src/archives/1.6/asciidoc/building-and-deploying.adoc
index 21d1fba..7148014 100644
--- a/manual/src/archives/1.6/asciidoc/building-and-deploying.adoc
+++ b/manual/src/archives/1.6/asciidoc/building-and-deploying.adoc
@@ -48,7 +48,20 @@
 +
 This will compile Apache Unomi without running the tests and takes less
  time to build.
-
++
+TIP: On a non-English Windows env, the Asciidoctor Maven Plugin may fail to
+     generate manuals due to an encoding conversion issue.
+     To solve this issue, we recommend setting the *file.encoding* system property
+     to _UTF-8_ like the following examples before issuing the commands shown above.
++
+[source]
+----
+     > set MAVEN_OPTS=-Dfile.encoding=UTF-8
+     or
+     > set MAVEN_OPTS=-Dfile.encoding=UTF-8 -Xmx2048m
+     ...
+----
++
 . The distributions will be available under "package/target" directory.
 
 ==== Installing an ElasticSearch server
diff --git a/manual/src/main/asciidoc/building-and-deploying.adoc b/manual/src/main/asciidoc/building-and-deploying.adoc
index 21d1fba..7148014 100644
--- a/manual/src/main/asciidoc/building-and-deploying.adoc
+++ b/manual/src/main/asciidoc/building-and-deploying.adoc
@@ -48,7 +48,20 @@
 +
 This will compile Apache Unomi without running the tests and takes less
  time to build.
-
++
+TIP: On a non-English Windows env, the Asciidoctor Maven Plugin may fail to
+     generate manuals due to an encoding conversion issue.
+     To solve this issue, we recommend setting the *file.encoding* system property
+     to _UTF-8_ like the following examples before issuing the commands shown above.
++
+[source]
+----
+     > set MAVEN_OPTS=-Dfile.encoding=UTF-8
+     or
+     > set MAVEN_OPTS=-Dfile.encoding=UTF-8 -Xmx2048m
+     ...
+----
++
 . The distributions will be available under "package/target" directory.
 
 ==== Installing an ElasticSearch server