link check with renaming to txt

.github/workflows/links.yml

@@ -9,11 +9,16 @@ jobs:
     steps:
         - name: Get the Code
           uses: actions/checkout@v2
+        - name: Rename .md files to .txt
+          run: |
+            cd $GITHUB_WORKSPACE
+            sudo apt-get install -y rename
+            find . -name "*.md" -exec rename 's/\.md$/.txt/' {} +
         - name: Lychee Link Checker
           id: lychee
           uses: lycheeverse/lychee-action@v1.0.8
           with:
-            args: --exclude-link-local --exclude=illeakyw.sirv.com --exclude=googleapis.com --exclude=fontawesome.com --exclude=google.com --exclude=accesstoinsight.org --exclude=suttacentral.net --exclude=github.com --exclude=openlibrary.org --exclude=twitter.com --exclude=google-analytics.com --exclude=worldcat.org --exclude=tinyletter.com --exclude=schema.org --exclude=wikimedia.org --exclude-mail --verbose --no-progress **/*.md
+            args: --exclude-link-local --exclude=illeakyw.sirv.com --exclude=googleapis.com --exclude=fontawesome.com --exclude=google.com --exclude=accesstoinsight.org --exclude=suttacentral.net --exclude=github.com --exclude=openlibrary.org --exclude=twitter.com --exclude=google-analytics.com --exclude=worldcat.org --exclude=tinyletter.com --exclude=schema.org --exclude-mail --verbose --no-progress **/*.txt
         - name: Create Issue
           if: ${{ steps.lychee.outputs.exit_code > 0 }}
           uses: peter-evans/create-issue-from-file@v2

_content/monographs/mindfulness-in-plain-english_gunaratana.md

@@ -17,5 +17,5 @@ The classic introduction to Buddhist meditation.
 
 Written in 1990, Wisdom published an expanded version in 1991 that became a huge success. That version has itself now undergone several revisions and reprints, the latest being the "20th Anniversary Edition" from 2011 which is the version I recommend.
 
-If you prefer to not spend money, the original manuscript can still be found [online here](https://www.vipassana.com/meditation/mindfulness_in_plain_english.php){:target="_blank" ga-event-value="5.75"} for free.
+If you prefer to not spend money, the original manuscript can still be found [online here](https://www.vipassana.com/meditation/mindfulness_in_plain_english.html){:target="_blank" ga-event-value="5.75"} for free.