also make readthedocs convert examples for docs

.readthedocs.yaml

@@ -10,6 +10,14 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.10"
+  jobs:
+    pre_build:
+      jupyter nbconvert --to rst ../examples/sonata-network/sonata-network.ipynb
+      jupyter nbconvert --to rst ../examples/nmc-portal/L5TTPC2.ipynb
+      cp ../examples/sonata-network/sonata-network.rst source/
+      cp -r ../examples/sonata-network/sonata-network_files source/
+      cp ../examples/nmc-portal/L5TTPC2.rst source/nmc-portal.rst
+      cp -r ../examples/nmc-portal/L5TTPC2_files source/
 
 python:
   # Install our python package before building the docs