docs: fix inconsistency and typos

subjects/ascii-art/color/README.md

@@ -15,12 +15,14 @@ Usage: go run . [OPTION] [STRING]
 
 EX: go run . --color=<color> <substring to be colored> "something"
 ```
-### Example
+
+### Usage
+
 ```shell
-go run . --color=red "kit" "a king kitten have kit"
+$ go run . --color=red kit "a king kitten have kit"
 ```
-for the above example the substring kit in the word kitten and the word kit at the end should be colored.
 
+For the example above, the substring kit in the word kitten and the word kit at the end should be colored.
 
 If there are other `ascii-art` optional projects implemented, the program should accept other correctly formatted `[OPTION]` and/or `[BANNER]`.
 Additionally, the program must still be able to run with a single `[STRING]` argument.