Rule comments

[ksmolyanin]

The only way to add a comment to the rule I have found is like this:

`pws: / [\t\r\n\x20]* /

"pws" means "Possible White Space"`

(before # must be two spaces but github text editor had removed them)

Here everything is important - writing it exactly on the next row and exactly using some leading white space! Isn't it quite strange?