Update inline-comments.md

According to the phpcs --standard=Joomla one should NOT have a single blank line before a comment or a block, if the comment is the first line of a code structure. (I.e, when the newline would appear after a '{' line, don't add it). Otherwise phpcs will complain with "Blank line found at start of control structure"

Author: MrBenGriffin

manual/en-US/coding-standards/chapters/inline-comments.md

@@ -16,7 +16,7 @@ Comments should precede the code they refer to. As a corollary, comments should
 
 Don’t use a blank line between comments and the code they refer to (no space underneath a comment block).
 
-Always have a single blank line before a comment or block of comments.
+Always have a single blank line before a comment or block of comments unless the comment (or block) is at the beginning of a code structure. ( You should not have a blank line after a '{' line )
 
 Comments should align with the code they refer to, using the same indenting as the line that follows the comment.