[#7875] minor tweaks

Author: xabbuh

contributing/code/bugs.rst

@@ -15,8 +15,8 @@ Before submitting a bug:
   framework;
 
 * Ask for assistance on `Stack Overflow`_, on the #support channel of
-  `the Symfony Slack`_, or on the #symfony `IRC channel`_ if you're not sure if
-  your issue is really a bug.
+  `the Symfony Slack`_ or on the #symfony `IRC channel`_ if you're not sure if
+  your issue really is a bug.
 
 If your problem definitely looks like a bug, report it using the official bug
 `tracker`_ and follow some basic rules: