Update rest-authentication.md

docs/guide/rest-authentication.md

@@ -6,7 +6,7 @@ be used. Therefore, each request should come with some sort of authentication cr
 the user authentication status may not be maintained by sessions or cookies. A common practice is
 to send a secret access token with each request to authenticate the user. Since an access token
 can be used to uniquely identify and authenticate a user, **API requests should always be sent
-via HTTPS to prevent from man-in-the-middle (MitM) attacks**.
+via HTTPS to prevent man-in-the-middle (MitM) attacks**.
 
 There are different ways to send an access token: