move to prebuild commands (#49)

Author: john0isaac

.readthedocs.yaml

@@ -9,8 +9,9 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.12"
-  commands:
-    -  pip install mkdocs-material mkdocstrings[python] pymdown-extensions
+  jobs:
+    pre_build:
+      -  pip install mkdocs-material mkdocstrings[python] pymdown-extensions
 
 mkdocs:
   configuration: docs/mkdocs.yml