Add check for keyword

.github/workflows/ci.yml

@@ -0,0 +1,17 @@
+name: "build"
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+jobs:
+  build:
+    name: Bazel Build and Test
+    run: |
+	grep -r 'butter\|financial\|exchange\|stock\|market\|trading\|GCPTP\|CME\|bubble\|coarse-grained equalization\|CGE\|coarse' *
+	if [ $? -eq 0 ]
+	then
+		echo "Keyword Check Failed. Pl. check and fix it"
+	else
+		echo "Keyword check Passed."
+	fi