NIFI-9172 fix Currency/Concurrency user guide typo

This closes #5352

Signed-off-by: Mike Thomsen <mthomsen@apache.org>
diff --git a/nifi-docs/src/main/asciidoc/user-guide.adoc b/nifi-docs/src/main/asciidoc/user-guide.adoc
index 0316a0e..e7b398b 100644
--- a/nifi-docs/src/main/asciidoc/user-guide.adoc
+++ b/nifi-docs/src/main/asciidoc/user-guide.adoc
@@ -742,7 +742,7 @@
 
 The third element in the configuration dialog is the Process Group Comments. This provides a mechanism for providing any useful information or context about the Process Group.
 
-The next two elements, Process Group FlowFile Currency and Process Group Outbound Policy, are covered in the following sections.
+The next two elements, Process Group FlowFile Concurrency and Process Group Outbound Policy, are covered in the following sections.
 
 [[Flowfile_Concurrency]]
 ===== FlowFile Concurrency