Re-enable the Markdown link checker. (#7889)

.github/workflows/markdown-links.yml

@@ -1,18 +1,17 @@
-# Currently disabled until all links have been fixed
-# name: Check Markdown links
+name: Check Markdown links
 
-# on:
-#   push:
-#     branches:
-#       - master
-#   pull_request:
-#     branches: [master]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches: [master]
 
-# jobs:
-#   markdown-link-check:
-#     runs-on: ubuntu-latest
-#     steps:
-#     - uses: actions/checkout@master
-#     - uses: gaurav-nelson/github-action-markdown-link-check@1.0.13
-#       with:
-#         check-modified-files-only: 'yes'
+jobs:
+  markdown-link-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: gaurav-nelson/github-action-markdown-link-check@1.0.13
+        with:
+          check-modified-files-only: 'yes'

.github/workflows/proto-check.yml

@@ -3,7 +3,7 @@ name: Proto Check
 # This workflow is only run when a file in the proto directory
 # has been modified.
 on:
-  workflow_dispatch: # allow running workflow manually
+  workflow_dispatch:  # allow running workflow manually
   pull_request:
     paths:
       - "proto/*"