fixed config error

.circleci/config.yml

@@ -27,7 +27,17 @@ jobs:
           name: Build
           command: yarn build-datatable
       
-      - save_cahce:
+      - save_cache:
           paths: 
             - dist/ng-datatable
           key: v1-dist-{{ .Environment.CIRCLE_BRANCH }}-{{ .Environment.CIRCLE_SHA1 }}
+
+      - run:
+          name: Publish
+          command:
+            if ["${CIRCLE_BRANCH}" === "production"]; then
+              cd dist/ng-datatable
+              npm publish
+            else
+              echo "Only the production branch is published"
+            fi