replaced sphinx with mkdocs

mkdocs.yml

@@ -1,12 +1,22 @@
 site_name: blag
 site_url: https://blag.readthedocs.io/
-nav:
-  - Home: index.md
-  - Manual: manual.md
-  - API: api.md
-theme: material
 repo_url: https://github.com/venthur/blag
 repo_name: venthur/blag
+
+nav:
+  - Home: README.md
+  - Manual: manual.md
+  - API:
+    - blag: blag_.md
+    - blag.version: version.md
+    - blag.blag: blag.md
+    - blag.markdown: markdown.md
+    - blag.devserver: devserver.md
+    - blag.quickstart: quickstart.md
+  - Changelog: CHANGELOG.md
+
+theme: material
+
 plugins:
   - search:
   - mkdocstrings:
@@ -14,6 +24,3 @@ plugins:
         python:
           options:
             docstring_style: numpy
-            allow_inspection: true
-            show_root_heading: true
-            show_if_no_docstring: true