Update artifacts/rhdh-plugins-reference/keycloak/keycloak-plugin-readme.adoc

Author: 04kash

artifacts/rhdh-plugins-reference/keycloak/keycloak-plugin-readme.adoc

@@ -19,7 +19,7 @@ global:
     includes: 
       - dynamic-plugins.default.yaml
     plugins: 
-      - package: ./dynamic-plugins/dist/backstage-community-plugin-catalog-backend-module-keycloak-dynamic`
+      - package: ./dynamic-plugins/dist/backstage-community-plugin-catalog-backend-module-keycloak-dynamic
         disabled: false
 ----