fix: align mac secrets table in internal builds doc

INTERNALBUILDS.md

@@ -32,8 +32,9 @@ base64 -i certificate.p12 -o encoded.txt
 2.  Under your repository name, click **Settings**.
 3.  In the left sidebar, click **Secrets**.
 4.  Add the following secrets:
+
     | Name                       | Value                                                                       |
-    | -------------------------- | ----------------------------------------------------------------------- |
+    | -------------------------- | --------------------------------------------------------------------------- |
     | `MAC_CERTIFICATE`          | The encoded Base64 certificate                                              |
     | `MAC_CERTIFICATE_PASSWORD` | The password that was set when the certificate was exported                 |
     | `SIGNING_APPLE_ID`         | The apple id (email) to use for signing                                     |