fix: address verified review findings (auth-config-doctor-1)

Signed-off-by: bircni <bircni@icloud.com>

docs/migration-1.0.md

@@ -111,7 +111,7 @@ Managing accounts:
 | `GITEA_SERVER_URL`, `GITEA_SERVER_TOKEN`, `GITEA_SERVER_USER`, `GITEA_SERVER_PASSWORD`, `GITEA_SERVER_OTP`, `GITEA_SCOPES` | removed with `tea login add` |
 
 New variables: `TEA_CONFIG_DIR`, `TEA_HOST`, `TEA_USER`, `TEA_REPO`, `TEA_EDITOR`,
-`TEA_PAGER` and `TEA_COLOR`; see `tea config --help`. Environment credentials are
+`TEA_PAGER` and `TEA_COLOR`; see `tea help environment`. Environment credentials are
 never written to disk.
 
 ### Git credential helper