cueweb ldap: add doc

Author: aoblet

cueweb/README.md

@@ -225,9 +225,9 @@ Go back to [Contents](#contents).
 
 ### Configuration
 
-To enable Okta, Google or Github authentication, simply set the environment variable
-`NEXT_PUBLIC_AUTH_PROVIDER` to either `google`, `okta`,`github` or all of them combined seperated by comma
-(e.g. `google,okta,github`) along with  the OAuth 2.0 secrets listed in `lib/auth.ts`. 
+To enable Okta, Google, Github or LDAP authentication, simply set the environment variable
+`NEXT_PUBLIC_AUTH_PROVIDER` to either `google`, `okta`,`github`, `ldap`or all of them combined seperated by comma
+(e.g. `google,okta,github,ldap`) along with  the OAuth 2.0 secrets listed in `lib/auth.ts`. 
 For example, providing the `GOOGLE_CLIENT_ID`, 
 `GOOGLE_CLIENT_SECRET` Google OAuth 2.0 environment variables and setting `NEXT_PUBLIC_AUTH_PROVIDER=google`
 will automatically enable google authentication. See `.env.example` on a list of environment variables to provide.