Adds `rel` parameter to the social icons configuration documentation (#987)

Alexander Lazarević

3 days ago eea6dfd3fe4b97518d2c5d2fb550e906793507e8

 docs/configurations.md

@@ -168,6 +168,7 @@
| icon           | string | Yes      | FontAwesome icon classes.                | `"fa-brands fa-github"`         |
| weight         | int    | Yes      | Icon order.                              | `1`                             |
| url            | string | Yes      | URL to redirect.                         | `"https://github.com/johndoe/"` |
| rel            | string | No       | Define the relationship                  | `"me"`                          |

An example: