Github user junichi11 commented on the issue:
https://github.com/apache/incubator-netbeans/pull/74
Yes, probably, "#" signs are not needed. I used them because I thought that
the format should be unified.
It is already used in o.n.swing.tabcontrol/readme.txt[1].
[1]
https://github.com/apache/incubator-netbeans/blob/master/o.n.swing.tabcontrol/readme.txt---
