Add linkcheck (#743)

* Add linkcheck

* Fix

Author: sayanarijit

.github/workflows/ci.yml

@@ -48,6 +48,16 @@ jobs:
         with:
           ignore_words_file: .codespellignore
 
+  linkcheck:
+    name: Markdown Link Check
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    steps:
+      - uses: actions/checkout@v3
+      - uses: gaurav-nelson/github-action-markdown-link-check@v1
+        with:
+          folder-path: "docs/en/src"
+
   test:
     name: Test Suite
     runs-on: ${{ matrix.os }}

docs/en/src/upgrade-guide.md

@@ -501,9 +501,9 @@ Else do the following:
 [3]: https://github.com/sayanarijit/xplr/releases/tag/v0.14.7
 [4]: https://github.com/sayanarijit/xplr/pull/229#issue-662426960
 [6]: https://github.com/sayanarijit/xplr/releases/tag/v0.12.1
-[7]: https://docs.rs/xplr/latest/xplr/app/enum.ExternalMsg.html#variant.CallLua
-[8]: https://docs.rs/xplr/latest/xplr/app/enum.ExternalMsg.html#variant.CallLuaSilently
-[9]: https://docs.rs/xplr/latest/xplr/app/struct.CallLuaArg.html
+[7]: messages.md#calllua
+[8]: messages.md#callluasilently
+[9]: lua-function-calls.md#lua-context
 [10]: https://docs.rs/xplr/latest/xplr/app/struct.App.html
 [11]: https://github.com/sayanarijit/xplr/releases/tag/v0.11.1
 [12]: https://github.com/sayanarijit/xplr/releases/tag/v0.10.2