fix: GUI & GNU

README.md

@@ -13,8 +13,8 @@
 | cache [🔊](http://dict.youdao.com/dictvoice?audio=cache&type=2) | ✅ [kæʃ] | ❌ [kætʃ] |
 | digest [🔊](http://dict.youdao.com/dictvoice?audio=digest&type=2) | ✅ [daɪ'dʒɛst] | ❌ ['digɛst] |
 | git [🔊](http://dict.youdao.com/dictvoice?audio=git&type=2) | ✅ [ɡɪt] | ❌ [dʒɪt; jɪt] |
-| GNU | ✅ [gnu:] | ❌ GNU |
-| GUI | ✅ [ˈɡui] | ❌ GUI |
+| GNU | ✅ [gnu:] | |
+| GUI | ✅ [ˈɡui] | |
 | hidden [🔊](http://dict.youdao.com/dictvoice?audio=hidden&type=2) | ✅ ['hɪdn] | ❌ ['haidn] |
 | integer [🔊](http://dict.youdao.com/dictvoice?audio=integer&type=2) | ✅ [ˈɪntɪdʒə] | ❌ [ˈɪntaɪgə] |
 | issue [🔊](http://dict.youdao.com/dictvoice?audio=issue&type=2) | ✅ [ˈɪʃu] | ❌ [ˈaɪʃu] |