Prevent markdown formatting from breaking leanpub render

.github/workflows/on-push-master-update-leanpub-preview.yml

@@ -1,4 +1,4 @@
-name: Notify Discord to cookbook update 
+name: Update leanpub branches
 
 on:
   push:
@@ -7,16 +7,42 @@ on:
     paths:
       - 'manuscript/*.md'
       - 'manuscript/**/*.md'
+      - '.github/workflows/*'
+      - 'scripts/*'
+
 
 jobs:
+  update-leanpub:
+    name: update-leanpub
+    runs-on: ubuntu-latest
+    steps:
     - name: Checkout charts repo
       uses: actions/checkout@v2
 
-    - name: Merge to leanpub-preview branch
-      uses: devmasx/merge-branch@v1.1.0
+    - name: Checkout latest leanpub-preview branch
+      uses: actions/checkout@v2
+      with:    
+        repository: ${{ env.GITHUB_PAGES_REPO }}
+        ref: leanpub-preview  
+        path: leanpub-preview
+
+    - name: Replace contents of leanpub-preview branch
+      run: |
+        rm -rf leanpub-preview/manuscript
+        rm -rf leanpub-preview/scripts
+        cp -rf manuscript leanpub-preview/
+        cp -rf scripts leanpub-preview/
+        cd leanpub-preview
+        ./scripts/markdown-to-markua.sh
+        git config --local --unset-all "http.https://github.com/.extraheader"
+        git config --global user.email "autopenguin@funkypenguin.co.nz"
+        git config --global user.name "AutoPenguin"        
+        git add .
+        git commit -m 'Update for leanpub preview'        
+
+    - name: Push changes
+      uses: ad-m/github-push-action@master
       with:
-        type: now
-        target_branch: 'leanpub-preview'
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        directory: leanpub-preview
+        branch: leanpub-preview