Update about.md

Author: quintuple-mallard

concepts/type-checking/about.md

@@ -7,7 +7,7 @@ Javascript has several ways to check the type of a value or object.
 ```exercism/note
 Javascript's type checking mechanisms can be somewhat unreliable.
 
-For true safety with types, you should probably use TypeScript, a language that builds on JavaScript, but with the type syntax of a static-typed language.
+For better type safety and stronger types, you should probably use TypeScript, a language that builds on JavaScript, but with the type syntax of a static-typed language.
 ```
 
 ## The `typeof` operator