Somebody help me please. How can I remove the underline whenever I create a page or a link? Is there a plugin for this? For example in Doku Wiki site all links does not have underline in it, and the underline will only appear when you point your cursor on it.
Please refer to the page on CSS stype sheets in the DokuWiki documentation: https://www.dokuwiki.org/devel:css. The complete DokuWiki manual can be found here: https://www.dokuwiki.org/manual
Most likely you'll want something similar to this:
div#dokuwiki__site p a.wikilink1 { text-decoration: reset !important; }
The exact CSS depends somewhat on your template but this should cover most bases.
