Stop deploying to Github pages

	Fixes: #1135

Signed-off-by: Daniel Holbach <daniel@weave.works>

.github/workflows/docs.yaml

-name: Publish docs via GitHub Pages
-
-on:
-  push:
-    branches: [ 'docs*', main ]
-
-jobs:
-  build:
-    name: Deploy docs
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout master
-        uses: actions/checkout@v1
-      - name: Copy assets
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          controller_version() {
-            sed -n "s/.*$1\/releases\/download\/\(.*\)\/.*/\1/p;n" manifests/bases/$1/kustomization.yaml
-          }
-
-          {
-            # source-controller CRDs
-            SOURCE_VER=$(controller_version source-controller)
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/source-controller/$SOURCE_VER/docs/api/source.md" > docs/components/source/api.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/source-controller/$SOURCE_VER/docs/spec/v1beta1/gitrepositories.md" > docs/components/source/gitrepositories.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/source-controller/$SOURCE_VER/docs/spec/v1beta1/helmrepositories.md" > docs/components/source/helmrepositories.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/source-controller/$SOURCE_VER/docs/spec/v1beta1/helmcharts.md" > docs/components/source/helmcharts.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/source-controller/$SOURCE_VER/docs/spec/v1beta1/buckets.md" > docs/components/source/buckets.md
-          }
-
-          {
-            # kustomize-controller CRDs
-            KUSTOMIZE_VER=$(controller_version kustomize-controller)
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/kustomize-controller/$KUSTOMIZE_VER/docs/api/kustomize.md" > docs/components/kustomize/api.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/kustomize-controller/$KUSTOMIZE_VER/docs/spec/v1beta1/kustomization.md" > docs/components/kustomize/kustomization.md
-          }
-
-          {
-            # helm-controller CRDs
-            HELM_VER=$(controller_version helm-controller)
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/helm-controller/$HELM_VER/docs/api/helmrelease.md" > docs/components/helm/api.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/helm-controller/$HELM_VER/docs/spec/v2beta1/helmreleases.md" > docs/components/helm/helmreleases.md
-          }
-
-          {
-            # notification-controller CRDs
-            NOTIFICATION_VER=$(controller_version notification-controller)
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/notification-controller/$NOTIFICATION_VER/docs/api/notification.md" > docs/components/notification/api.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/notification-controller/$NOTIFICATION_VER/docs/spec/v1beta1/event.md" > docs/components/notification/event.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/notification-controller/$NOTIFICATION_VER/docs/spec/v1beta1/alert.md" > docs/components/notification/alert.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/notification-controller/$NOTIFICATION_VER/docs/spec/v1beta1/provider.md" > docs/components/notification/provider.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/notification-controller/$NOTIFICATION_VER/docs/spec/v1beta1/receiver.md" > docs/components/notification/receiver.md
-          }
-
-          {
-            # image-*-controller CRDs; these use the same API group
-            IMG_REFL_VER=$(controller_version image-reflector-controller)
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/image-reflector-controller/$IMG_REFL_VER/docs/api/image-reflector.md" > docs/components/image/reflector-api.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/image-reflector-controller/$IMG_REFL_VER/docs/spec/v1alpha2/imagerepositories.md" > docs/components/image/imagerepositories.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/image-reflector-controller/$IMG_REFL_VER/docs/spec/v1alpha2/imagepolicies.md" > docs/components/image/imagepolicies.md
-
-            IMG_AUTO_VER=$(controller_version image-automation-controller)
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/image-automation-controller/$IMG_AUTO_VER/docs/api/image-automation.md" > docs/components/image/automation-api.md
-            curl -# -Lf "https://raw.githubusercontent.com/fluxcd/image-automation-controller/$IMG_AUTO_VER/docs/spec/v1alpha2/imageupdateautomations.md" > docs/components/image/imageupdateautomations.md
-          }
-
-          {
-            # install script
-            cp install/flux.sh docs/install.sh
-          }
-      - name: Deploy docs
-        uses: mhausenblas/mkdocs-deploy-gh-pages@master
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          CUSTOM_DOMAIN: toolkit.fluxcd.io
-