docs(reverseSecondHalf): fix subject

- fix indentation
- fixed console output

subjects/reversesecondhalf/README.md

@@ -1,9 +1,9 @@
-# reversesecondhalf
+## reversesecondhalf
 
 ### Instructions
-Write a function `ReverseSecondHalf()` that takes a string as an argument and prints the second half reversed. If the length of the string is odd, round it up.
+Write a function that takes a `string` as an argument and prints the second half reversed. If the length of the string is odd, round it up.
 
-- Prints the second half reversed followed by newline `\n`.
+- Print the second half reversed followed by newline `\n`.
 - If the string is empty, return `Invalid Output`.
 - If the string's length equals one, return it, followed by newline `\n`.
 
@@ -11,12 +11,13 @@ Write a function `ReverseSecondHalf()` that takes a string as an argument and pr
 
 ```go
 func ReverseSecondHalf(str string) string {
+
 }
 ```
 
 ### Usage
 
-Here is a possible program to test your function :
+Here is a possible program to test your function:
 
 ```go
 package main
@@ -24,18 +25,18 @@ package main
 import "fmt"
 
 func main() {
-    fmt.Print(ReverseSecondHalf("This is the 1st half This is the 2nd half"))
-    fmt.Print(ReverseSecondHalf(""))
-    fmt.Print(ReverseSecondHalf("Hello World"))
+	fmt.Print(ReverseSecondHalf("This is the 1st half This is the 2nd half"))
+	fmt.Print(ReverseSecondHalf(""))
+	fmt.Print(ReverseSecondHalf("Hello World"))
 }
-
 ```
 
-And its output :
+And its output:
 
-```go
+```console
 $ go run . | cat -e
-flah dn2 eht si sihT$
-Invalid Output$
-dlroW$
+flah dn2 eht si sihT
+Invalid Output
+dlroW
+$
 ```