Support GFM style #kebab-case-heading-slug anchor targets

[jmkim]

Another related feature request:

Support the Github anchor format

Use case or problem As we know, Github support markdown viewing directly in their web pages, so I just uploaded my notes to it and found some errors about anchor. if you type [[# and choose a title with blank and use autocompletion, you will get an anchor with a URLEncoded format %20. If you change it to -, you can jump to proper position in Github and other viewers accepting this format but will fail in Obsidian. An Example: # Anchor Test(test) Obsidian autocomplete: [Anchor Test(test)](#An…