external mongo secrets config (#4166)

Signed-off-by: Bruno Ledesma <bruno.ledesma@nubank.com.br>
Signed-off-by: Vedant Shrotria <vedant.shrotria@harness.io>
Signed-off-by: Saranya Jena <saranya.jena@harness.io>
Co-authored-by: Vedant Shrotria <vedant.shrotria@harness.io>
Co-authored-by: Saranya Jena <saranya.jena@harness.io>

mkdocs/docs/experiments/faq/portal.md

@@ -23,7 +23,7 @@ hide:
 ### Can we host MongoDB outside the cluster? What connection string is supported? Is SSL connection supported? 
 
 Yes we can host Mongodb outside the cluster, the mongo string can be updated accordingly DataBaseServer: "mongodb://mongo-service:27017"
-We use the same connection string for both authentication server and graphql server containers in litmus portal-server deployment, also there are the db user and db password keys that can be tuned in the configmap like DB_USER: "admin" and DB_PASSWORD: "1234". 
+We use the same connection string for both authentication server and graphql server containers in litmus portal-server deployment, also there are the db user and db password keys that can be tuned in the secrets like DB_USER: "admin" and DB_PASSWORD: "1234". 
 We can connect with SSL if the certificate is optional. If our requirement is ca.cert auth for the SSL connection, then this is not available on the portal
 
 ### What does failed status of workflow means in LitmusPortal?