Typo fix

Oleg Michailov · Oleg Michailov · commit 46462e60ced1 · 2020-08-05T17:30:44.000+03:00
diff --git a/README.md b/README.md
@@ -20,7 +20,7 @@
 "foot".pluralize()          # => "feet"
 ```
 
-**Singuralization:**
+**Singularization:**
 
 ```kotlin
 "words".singularize()       # => "word"
