Update .readthedocs.yml

.readthedocs.yml

@@ -1,12 +1,31 @@
+# Required
+version: 2
+
+# Set the OS, Python version and other tools you might need
 build:
   os: ubuntu-22.04
   tools:
     python: "3.7"
+    # You can also specify other tool versions:
+    # nodejs: "20"
+    # rust: "1.70"
+    # golang: "1.20"
+  commands:
+    - make clean
+    - make html
 
+# Build documentation in the "docs/" directory with Sphinx
 python:
   install:
     - requirements: requirements.txt
-
-commands:
-  - make clean
-  - make html
+sphinx:
+  configuration: conf.py
+  # You can configure Sphinx to use a different builder, for instance use the dirhtml builder for simpler URLs
+  # builder: "dirhtml"
+  # Fail on all warnings to avoid broken references
+  # fail_on_warning: true
+
+# Optionally build your docs in additional formats such as PDF and ePub
+formats:
+  - pdf
+  - epub