Apply suggestion from @schavis

Author: schavis

content/vault/v1.18.x/content/docs/auth/login-mfa/index.mdx

@@ -112,9 +112,7 @@ $ curl \
     http://127.0.0.1:8200/v1/auth/userpass/login/alice
 ```
 
-For CLI, you need to make use of the `-mfa` flag or `VAULT_MFA` environment variable to pass in the MFA credentials.
-
-**Examples**:
+Use the `-mfa` CLI flag or `VAULT_MFA` environment variable to pass in MFA credentials. For example:
 
 - CLI flag: `-mfa "d16fd3c2-50de-0b9b-eed3-0301dadeca10:695452"`
 - Environment variable: `export VAULT_MFA="d16fd3c2-50de-0b9b-eed3-0301dadeca10:695452"`