🔍️ Improve markdown anchor tokens

Author: pboling

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 ## Contributing
 
-Bug reports and pull requests are welcome on GitLab at [https://gitlab.com/oauth-xx/oauth2][source]
+Bug reports and pull requests are welcome on GitLab at [https://gitlab.com/oauth-xx/oauth2][🚎src-main]
 . This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to
 the [code of conduct][conduct].
 
@@ -41,4 +41,4 @@ Made with [contributors-img][contrib-rocks].
 
 [comment]: <> (Following links are used by README, CONTRIBUTING, Homepage)
 
-[source]: https://gitlab.com/oauth-xx/oauth2/
+[🚎src-main]: https://gitlab.com/oauth-xx/oauth2/-/tree/main

README.md

@@ -119,7 +119,7 @@ appended indicators:
 |     | Project               | bundle add oauth2                                                                                                                                                                                                                                                          |
 |:----|-----------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | 1️⃣ | name, license, docs   | [![RubyGems.org][⛳️name-img]][⛳️gem] [![License: MIT][🖇src-license-img]][🖇src-license] [![FOSSA][🏘fossa-img]][🏘fossa] [![RubyDoc.info][🚎yard-img]][🚎yard] [![InchCI][🖐inch-ci-img]][🚎yard]                                                                         |
-| 2️⃣ | version & activity    | [![Gem Version][⛳️version-img]][⛳️gem] [![Total Downloads][🖇DL-total-img]][⛳️gem] [![Download Rank][🏘DL-rank-img]][⛳️gem] [![Source Code][🚎src-home-img]][🚎src-home]                                                                                                   |
+| 2️⃣ | version & activity    | [![Gem Version][⛳️version-img]][⛳️gem] [![Total Downloads][🖇DL-total-img]][⛳️gem] [![Download Rank][🏘DL-rank-img]][⛳️gem] [![Source Code][🚎src-home-img]][🚎src-main]                                                                                                   |
 | 3️⃣ | maintanence & linting | [![Maintainability][⛳cclim-maint-img♻️]][⛳cclim-maint] [![Helpers][🖇triage-help-img]][🖇triage-help] [![Depfu][🏘depfu-img♻️]][🏘depfu♻️] [![Contributors][🚎contributors-img]][🚎contributors] [![Style][🖐style-wf-img]][🖐style-wf] [![Kloc Roll][🧮kloc-img]][🧮kloc] |
 | 4️⃣ | testing               | [![Supported][🏘sup-wf-img]][🏘sup-wf] [![Heads][🚎heads-wf-img]][🚎heads-wf] [![Unofficial Support][🖐uns-wf-img]][🖐uns-wf] [![MacOS][🧮mac-wf-img]][🧮mac-wf] [![Windows][📗win-wf-img]][📗win-wf]                                                                      |
 | 5️⃣ | coverage & security   | [![CodeClimate][⛳cclim-cov-img♻️]][⛳cclim-cov] [![CodeCov][🖇codecov-img♻️]][🖇codecov] [![Coveralls][🏘coveralls-img]][🏘coveralls] [![Security Policy][🚎sec-pol-img]][🚎sec-pol] [![CodeQL][🖐codeQL-img]][🖐codeQL] [![Code Coverage][🧮cov-wf-img]][🧮cov-wf]         |
@@ -145,7 +145,7 @@ The link tokens in the following sections should be kept ordered by the row and
 [⛳️version-img]: http://img.shields.io/gem/v/oauth2.svg
 [🖇DL-total-img]: https://img.shields.io/gem/dt/oauth2.svg
 [🏘DL-rank-img]: https://img.shields.io/gem/rt/oauth2.svg
-[🚎src-home]: https://gitlab.com/oauth-xx/oauth2/
+[🚎src-main]: https://gitlab.com/oauth-xx/oauth2/-/tree/main
 [🚎src-home-img]: https://img.shields.io/badge/source-gitlab-blue.svg?style=flat
 
 <!-- 3️⃣ maintenance & linting -->