docs(more-or-less): correct grammar

subjects/more-or-less/README.md

@@ -2,14 +2,13 @@
 
 ### Instructions
 
-Create 4 functions
+Create 4 functions:
-
+- `more` that takes 1 argument and adds 1 to it.
-- `more` that takes 1 argument and add 1 to it
+- `less` that takes 1 argument and subtracts 1 from it.
-- `less` that takes 1 argument and subtract 1 to it
+- `add` that takes 2 arguments and adds them together.
-- `add` that takes 2 arguments and add them
+- `sub` that takes 2 arguments and subtracts the second argument from the first.
-- `sub` that takes 2 arguments and subtract them
 
 ### Notions
 
-- [nan-academy.github.io/js-training/examples/functions](https://nan-academy.github.io/js-training/examples/functions.js)
+- [Functions](https://nan-academy.github.io/js-training/examples/functions.js)
-- [nan-academy.github.io/js-training/examples/primitive-and-operators](https://nan-academy.github.io/js-training/examples/primitive-and-operators.js)
+- [Primitives and Operators](https://nan-academy.github.io/js-training/examples/primitive-and-operators.js)