Publish PDF version of RTD documentation #125

Made changes in the .readthedocs.yaml to enable format for downloading pdf and epub versions of the documentation

Signed-off-by: Arijit De <arijitde2050@gmail.com>

Author: arijitde92

.readthedocs.yml

@@ -5,6 +5,11 @@
 # Required
 version: 2
 
+# Build PDF & ePub
+formats:
+  - epub
+  - pdf
+
 # Where the Sphinx conf.py file is located
 sphinx:
    configuration: docs/source/conf.py