Add workflow that triggers read the docs build

Author: w1th0utnam3

.github/workflows/pysplashsurf_CI.yml

@@ -237,6 +237,14 @@ jobs:
         name: DocumentationHTML
         path: pysplashsurf/pysplashsurf/docs/build/html/
 
+  read_the_docs:
+    needs: docs
+    runs-on: ubuntu-latest
+    steps:
+    - name: Trigger Read the Docs build
+      run: |
+        curl -X POST -d "branches=main" -d "token=${{ secrets.READTHEDOCS_TOKEN }}" https://app.readthedocs.org/api/v2/webhook/pysplashsurf/299116/
+
   tests:
     needs: build_wheel
     defaults: