Update documentation.md

content/en/contribute/documentation.md

@@ -85,6 +85,24 @@ Yes → Hugo is fast.
 "It's an adverb, Sam. It's a lazy tool of a weak mind." (Outbreak, 1995).
 {{% /note %}}
 
+#### Level 6 headings
+
+Level 6 headings are styled as `dt` elements. This was implemented to support a [glossary] with linkable terms.
+
+[glossary]: /getting-started/glossary/
+
+#### Function and method descriptions
+
+When adding a page to the [functions] or [methods] section, begin the description with the word "Returns". With functions and methods that return a boolean value, beging the description with the phrase "Reports whether".
+
+For example:
+
+- `Returns the URL aliases as defined in front matter.`
+- `Reports whether the given page is in the given section.`
+
+[functions]: /functions
+[methods]: /methods
+
 #### Miscellaneous
 
 Other guidelines to consider:
@@ -97,12 +115,6 @@ Other guidelines to consider:
 - When including code samples, use short snippets that demonstrate the concept.
 - The Hugo user community is global; use  [basic english](https://simple.wikipedia.org/wiki/Basic_English) when possible.
 
-#### Level 6 headings
-
-Level 6 headings are styled as `dt` elements. This was implemented to support a [glossary] with linkable terms.
-
-[glossary]: /getting-started/glossary/
-
 ## Code examples
 
 Indent code by two spaces. With examples of template code, include a space after opening action delimiters, and include a space before closing action delimiters.