chore: update the readthedocs file to version 2 specifications

Author: alexsavio

.readthedocs.yml

@@ -1,9 +1,17 @@
+version: 2
+
 build:
   image: latest
 
+formats: all
+
+mkdocs:
+  configuration: mkdocs.yml
+  fail_on_warning: false
+
 python:
   version: 3.7
-  setup_py_install: true
   install:
     - requirements: docs/requirements.txt
     - method: pip
+      path: .

mkdocs.yml

@@ -23,8 +23,8 @@ markdown_extensions:
   - pymdownx.caret
   - pymdownx.critic
   - pymdownx.details
-  - pymdownx.emoji:
-      emoji_generator: !!python/name:pymdownx.emoji.to_svg
+  # - pymdownx.emoji:
+  #     emoji_generator: !!python/name:pymdownx.emoji.to_svg
   - pymdownx.inlinehilite
   - pymdownx.magiclink
   - pymdownx.mark