Add documentation for jinja-like comments in templates

docs/index.rst

@@ -121,6 +121,17 @@ But use this instead in your docx template ::
 This syntax is possible because MS Word considers each line as a new paragraph and
 ``{%p`` tags are not in the same paragraph in the second case.
 
+Comments
+........
+
+You can add jinja-like comments in your template ::
+
+   {#p this is a comment as a paragraph #}
+   {#tr this is a comment as a table row #}
+   {#tc this is a comment as a table cell #}
+
+See tests/templates/comments_tpl.docx for an example.
+
 Multiple rendering
 ..................
 

tests/comments.py

@@ -1,6 +1,6 @@
 from docxtpl import DocxTemplate
 
-tpl = DocxTemplate('templates/comments.docx')
+tpl = DocxTemplate('templates/comments_tpl.docx')
 
 tpl.render({})
 tpl.save('output/comments.docx')