Add pdf and Epub formats

Author: sudheerj

.github/workflows/main.yaml

@@ -0,0 +1,32 @@
+name: Advanced Usage
+
+on: [push, pull_request]
+
+env:
+  FILE_NAME: angular-interview-questions
+
+jobs:
+  convert_via_pandoc:
+    runs-on: ubuntu-18.04    
+    steps:      
+      - uses: actions/checkout@v2    
+
+      - name: Create output directory
+        run: |
+          mkdir output  # create output dir          
+      
+      - name: Create PDF
+        uses: docker://pandoc/latex:2.9              
+        with:
+          args: --pdf-engine=xelatex --output=output/${{env.FILE_NAME}}.pdf README.md
+
+      - name: Create epub
+        uses: docker://pandoc/latex:2.9      
+        with:
+          args: --output=output/${{env.FILE_NAME}}.epub README.md
+      
+      - name: Upload
+        uses: actions/upload-artifact@master
+        with:
+          name: output
+          path: output

README.md

@@ -2,6 +2,10 @@
 
 > Click :star:if you like the project. Pull Request are highly appreciated. Follow me [@SudheerJonna](https://twitter.com/SudheerJonna) for technical updates.
 
+## Downloading PDF/Epub formats
+
+You can download the PDF and Epub version of this repository from the latest run on the [actions tab](https://github.com/sudheerj/angular-interview-questions/actions).
+
 ### Table of Contents
 
 | No. | Questions |