Revert "add workflow to generate README.md (#188)"

This reverts commit 6620fde.

Signed-off-by: Tom Hayward <thayward@infoblox.com>

.github/workflows/lint-test.yml

@@ -2,14 +2,9 @@ name: Lint and Test Charts
 
 on:
   push:
-    branches-ignore:
-      - master
+    branches:
       - main
   pull_request:
-    paths-ignore:
-      - '*.md'
-      - 'docs/**'
-      - 'tools/**'
 
 jobs:
   lint-test:
@@ -40,10 +35,15 @@ jobs:
       - name: Run chart-testing (lint)
         run: ct lint --config ct.yaml
 
+      - name: Updated README.md
+        run: |
+          make README.md
+          git diff --exit-code -- README.md
+
       - name: Create kind cluster
         uses: helm/kind-action@v1.2.0
 
       - name: Run chart-testing (install)
         run: |
           kubectl create namespace cortex
-          ct install --config ct.yaml --namespace cortex
+          ct install --config ct.yaml --namespace cortex