add no_audit (and _free) tag info to switches and fix bad layout on ball_devices no-eject-on-ballsearch tag

Author: bosh

docs/config/ball_devices.md

@@ -622,7 +622,7 @@ Special-purpose tags for ball devices include:
     device receiving balls from the playfield which it then immediately
     kicks over to a "trough" device which holds the balls that are not
     in play.
-    \+ `no-eject-on-ballsearch` - Specifies that this device should
+* `no-eject-on-ballsearch` - Specifies that this device should
     never attempt to eject a ball as a result of ball search, even when
     idle and containing no balls.
 

docs/config/switches.md

@@ -291,6 +291,8 @@ Special-purpose tags for switches include:
     and [flipper_cancel](../events/flipper_cancel.md) events if your cabinet flipper buttons are tagged with
     their respective flippers. With MPF 0.80, the built-in high_score mode and slide hook onto these two flipper tags
     to control character selection and submission.
+* `no_audit` and `no_audit_free` - The MPF switch auditor will not create audits for switches using these tags.
+    The `no_audit` will exclude the switch in all cases, and `no_audit_free` will only exclude the switch while in free play.
 
 #### Tags for optional built-in modes