Add 'scheme'

README.md

@@ -38,6 +38,7 @@
 | retina [🔊](http://dict.youdao.com/dictvoice?audio=retina&type=2) | ✅ ['retnə] | ❌ [ritina] |
 | query [🔊](http://dict.youdao.com/dictvoice?audio=query&type=2) | ✅ ['kwɪri] | ❌ ['kwaɪri] |
 | safari [🔊](http://dict.youdao.com/dictvoice?audio=safari&type=2) | ✅ [səˈfɑːrɪ] | ❌ [sæfərɪ] |
+| scheme [🔊](http://dict.youdao.com/dictvoice?audio=scheme&type=2) | ✅ [skim] | ❌ [s'kæmə] |
 | sudo | ✅ ['su:du:] | |
 | suite [🔊](http://dict.youdao.com/dictvoice?audio=suite&type=2) | ✅ [sut; swit] | ❌ [sjuːt] |
 | typical [🔊](http://dict.youdao.com/dictvoice?audio=typical&type=2) | ✅ ['tɪpɪkl] | ❌ ['taɪpɪkəl] |