doc: properly show that a class directive *is* needed for a table.

The output markup had it but the snippet not, causing confusion.

diff --git a/doc/themes/writing-rst-content.rst b/doc/themes/writing-rst-content.rst
index 319363b3171a1ed96c821ba017fef120ec0c9da4..b98ff029b6c50bcd310b90599271c9208b813cdb 100644 (file)
--- a/doc/themes/writing-rst-content.rst
+++ b/doc/themes/writing-rst-content.rst
@@ -296,6 +296,8 @@ have lists inside quotes and the like.
             Literal block is itroduced with ::, which can be even part of previous
             paragraph (in which case it's reduced to a single colon).
 
+        .. class:: m-table
+
         ========= ============
         Heading 1 Heading 2
         ========= ============