chore(docs): Fix incorrect base_url in gitlab/config (#13)

* add https to base_url

* Update README.md

README.md

@@ -59,16 +59,19 @@ Since Gitlab 16.0 the ability to create non expiring token has been removed.
 The command bellow will set up the config backend with a max TTL of 48h.
 
 ```shell
-$ vault write gitlab/config max_ttl=48h base_url=gitlab.example.com token=gitlab-super-secret-token
+$ vault write gitlab/config max_ttl=48h base_url=https://gitlab.example.com token=gitlab-super-secret-token
 ```
 
 ### Roles
 
 This will create three roles, one of each type.
 
 ```shell
+# personal access tokens can only be created by Gitlab Administrators (see https://docs.gitlab.com/ee/api/users.html#create-a-personal-access-token)
 $ vault write gitlab/roles/personal name=personal-token-name path=username scopes="read_api" token_type=personal token_ttl=24h
+
 $ vault write gitlab/roles/project name=project-token-name path=group/project scopes="read_api" access_level=guest token_type=project token_ttl=24h
+
 $ vault write gitlab/roles/group name=group-token-name path=group/subgroup scopes="read_api" access_level=developer token_type=group token_ttl=24h
 ```