line wrapping

contributing_to_docs/doc_guidelines.adoc

@@ -5,6 +5,11 @@ include::modules/common-attributes.adoc
 The documentation guidelines for OpenShift 4 build on top of the
 link:https://redhat-documentation.github.io/modular-docs/[Red Hat modular docs reference guide].
 
+== General file guidelines
+
+* Set your editor to strip trailing whitespace.
+* Unless your line contains a link or xref, wrap each line at 80 characters.
+
 == Assembly file metadata
 Every assembly file should contain the following metadata at the top, with no line
 spacing in between, except where noted:
@@ -23,11 +28,6 @@ include::modules/common-attributes.adoc[]                       <3>
 
 After the heading block and a single whitespace line, you can include any content for this assembly.
 
-[NOTE]
-====
-Set your editor to strip trailing whitespace.
-====
-
 [NOTE]
 ====
 The assembly title, which is the first line of the document, is the only level 1 ( = ) title.