chore(python): split mkdocs project and code project's requirements.txt

.readthedocs.yaml

@@ -0,0 +1,15 @@
+# .readthedocs.yaml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+mkdocs:
+  configuration: mkdocs.yml
+
+# Optionally set the version of Python and requirements required to build your docs
+python:
+   version: 3.8
+   install:
+   - requirements: docs/requirements.txt

docs/requirements.txt

@@ -0,0 +1,3 @@
+mkdocs>=1.1.2
+mkdocs-material>=7.0.5
+mkdocs-material-extensions>=1.0.1

requirements.txt

@@ -1,3 +1 @@
-mkdocs>=1.1.2
-mkdocs-material>=7.0.5
-mkdocs-material-extensions>=1.0.1
+# Automatically generated by https://github.com/damnever/pigar.