ci: syncronize integration doc updates for each release

The new job added to the existing Release workflow was modeled after the one in the `phylum-dev/cli` repo. The organizational secret used for accessing the Readme.com platform was exposed to this repo and is ready for use.

Closes #75

.github/workflows/release.yml

@@ -183,3 +183,16 @@ jobs:
       - name: Logout of Docker Hub
         if: always()
         run: docker logout
+
+  docs:
+    name: Update the readme documentation
+    needs: release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repo
+        uses: actions/checkout@v3
+
+      - name: Update v2-latest using rdme
+        uses: readmeio/rdme@7.3.0
+        with:
+          rdme: docs ./docs --key=${{ secrets.README_API }} --version=2-latest