Smart linking into gh

[Siemienik]

This issue assumes to add smart linking creation into GH.

• @Siemienik should links into GH profile
• https://github.com/Siemienik/XToolset/pull/196 should be [:siemienik-icon:XToolset#196](https://github.com/Siemienik/XToolset/pull/196)
• https://github.com/ANOTHER_USER_OR_ORGANIZATION/repo/pull/196 should be `:gh-icon:ANOTHER_USER_OR_ORGANIZATION/repo#196