docs: update README

README.md

@@ -2,7 +2,7 @@
 
 Google Translate client on your console (Unofficial)
 
-![](Screenshot_20210424_224030.png)
+![](Screenshot_20211224_150251.png)
 
 ## Warning
 
@@ -27,12 +27,14 @@ It use Google Translate's API(free), so it may not work when you send too many r
     - `python main.py`
 
 ## Controls
-
+- General
     - Send Request: `ALT + ENTER`
+    - Swap Language: `CTRL + T`
     - Delete all input: `CTRL + D`
     - Exit: `Ctrl + Q`
     - Select Language: `Ctrl + S`
         - Select other Widget: `TAB`/`Shift+TAB`
         - Select: `ENTER`
+- Sound
     - Play Sound on left: `CTRL + K`
     - Play Sound on right: `CTRL + L`