docs: Fix markdown in SQL style guide

sql-style-guide.md

@@ -67,7 +67,7 @@ For `create table` statements:
   `tablename` is the name of the table and `col1_colx` is the name of each
   column in the unique constraint.
 - The naming pattern for unique constraint names which would be over 63 characters
-  in length is to prioritize keeping the full 'tablename_uq' pattern intact and
+  in length is to prioritize keeping the full `tablename_uq` pattern intact and
   abbreviate the names of the columns.
 
 ### Functions