use relative links from wiki to repository

Getting-Started-with-MMGen.md

@@ -1130,4 +1130,4 @@ $ python3 -m pip install --user --upgrade dist/*.whl
 [07]: command-help-autosign
 [08]: Install-Bitcoind
 [09]: Altcoin-and-Forkcoin-Support
-[cp]: ../commits/master
+[cp]: https://gitlab.com/MMGen/mmgen/-/commits/master

Home.md

@@ -34,4 +34,4 @@ are performed via the `/` key.
 
 > #### [Tool API](Tool-API)
 
-[cn]: ../commits/master
+[cn]: https://gitlab.com/MMGen/mmgen/-/commits/master

Install-MMGen-on-Microsoft-Windows.md

@@ -464,10 +464,10 @@ continue from the `git checkout stable_msys2` step.
 [mh]: https://www.msys2.org
 [mp]: https://sourceforge.net/projects/msys2
 [mw]: https://github.com/msys2/msys2/wiki
-[ov]: ../releases/tag/v0.9.8
+[ov]: https://gitlab.com/MMGen/mmgen/-/releases/tag/v0.9.8
 [sd]: https://download.sysinternals.com/files/SDelete.zip
 [og]: https://github.com/openethereum/openethereum/releases
-[mr]: ../releases
+[mr]: https://gitlab.com/MMGen/mmgen/-/releases
 [di]: Deprecated-MSWin-Installation
 [ib]: Install-Bitcoind
 [gs]: Getting-Started-with-MMGen

Subwallets.md

@@ -145,7 +145,7 @@ the above examples that can be run as-is, see commits [`7538a94`][c1],
 For more detailed usage information, see the [`mmgen-subwalletgen` help
 screen][sh].
 
-[c1]: ../commit/7538a9460e897b9b23d8ac58853c33713334043f
-[c2]: ../commit/d1b8aefde6d3a13337cbe3147d9913eb09b6765b
-[c3]: ../commit/82086c9936843dc43c1892b672cdf1680763ee84
+[c1]: https://gitlab.com/MMGen/mmgen/-/commit/7538a9460e897b9b23d8ac58853c33713334043f
+[c2]: https://gitlab.com/MMGen/mmgen/-/commit/d1b8aefde6d3a13337cbe3147d9913eb09b6765b
+[c3]: https://gitlab.com/MMGen/mmgen/-/commit/82086c9936843dc43c1892b672cdf1680763ee84
 [sh]: command-help-subwalletgen