Zip docs as a release artifact (#698)

Author: thegridman

.github/workflows/release.yml

@@ -170,6 +170,6 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
         upload_url: ${{ github.event.release.upload_url }}
-        asset_path: /tmp/coherence-operator/_output/docs.tar.gz
-        asset_name: docs.tar.gz
-        asset_content_type: application/tar+gzip
+        asset_path: /tmp/coherence-operator/_output/docs.zip
+        asset_name: docs.zip
+        asset_content_type: application/zip

Makefile

@@ -2579,7 +2579,7 @@ docs: api-doc-gen
 	mkdir -p $(BUILD_OUTPUT)/docs/images/images
 	cp -R docs/images/* build/_output/docs/images/
 	find examples/ -name \*.png -exec cp {} build/_output/docs/images/images/ \;
-	tar -C $(BUILD_OUTPUT) -czvf $(BUILD_OUTPUT)/docs.tar.gz ./docs
+	cd $(BUILD_OUTPUT)/docs && zip -r $(BUILD_OUTPUT)/docs.zip *
 
 # ----------------------------------------------------------------------------------------------------------------------
 # Test the documentation.