docs(unbreakable): correct grammar

subjects/unbreakable/README.md

@@ -4,20 +4,19 @@
 
 Implement 2 functions:
 
-- `split` that works like the string method `.split` but take the string as
-  it's first argument.
+- `split` that works like `String.split`, but takes the `string` as its first argument.
 
-- `join` that works like the string method `.join` but take the array as
-  it's first argument.
+- `join` that works like `Array.join`, but take the array as
+  its first argument.
 
 ### Notions
 
-- [devdocs.io/javascript/global_objects/array/join](https://devdocs.io/javascript/global_objects/array/join)
-- [devdocs.io/javascript/global_objects/string/split](https://devdocs.io/javascript/global_objects/string/split)
+- [Array.join](https://devdocs.io/javascript/global_objects/array/join)
+- [String.split](https://devdocs.io/javascript/global_objects/string/split)
 
 ### Code provided
 
-> all code provided will be added to your solution and doesn't need to be submited.
+> The provided code will be added to your solution, and does not need to be submitted.
 
 ```js
 String.prototype.split = undefined