wording

README.md

@@ -247,7 +247,8 @@ jobs:
 **Caveat:** due to [this issue](https://github.com/docker-library/mongo/issues/211), you **cannot enable user creation AND replica sets** initially. Therefore, if you use this action to setup a replica set, please create your users through a separate script.
 
 ### Using a Custom Mongo Image
-You can utilize an alternative Redis image using the `mongodb-image` input:
+You can utilize an alternative MongoDB docker image using the `mongodb-image` input:
+
 
 ```yaml
     - name: Start MongoDB