Update Login resource docs

api/api.py

@@ -45,7 +45,24 @@
 
 
 class Login(Resource):
-    def post(self):
+    def post(self) -> tuple:
+        """Validates username/password and returns both access and refresh tokens.
+
+        Return Codes:
+                200 (OK): On success.
+                401 (Unauthroized): When username or password are incorrect.
+                422 (Unprocessable Entitiy): When the username or password can't be parsed.
+
+        Example:
+                curl -X POST
+                    -H "Content-Type: application/json" 
+                    -d '{"username": "bob", "password": "super_secret"}'
+
+                { "access_token": fjr09hfp09h932jp9ruj3.3r8ihf8h0w8hr08ifhj804h8i.8h48ith08ity409hip0t4 }
+
+        Returns:
+                tuple: Response containing tokens and HTTP response code.
+        """
         if not request.is_json:
             return ({ "message": "JSON missing from request body"}, 422)