Update README.md

Author: ka-os

README.md

@@ -3,13 +3,15 @@ Bash script to rename bulk files extensions in current directory.
 Script requires two arguments: 
   1. arg1 extension of files you want to change
   2. arg2 target extension
-   
-$ ./renamext arg1 arg2
 
+```bash   
+$ ./renamext arg1 arg2
+```
 
 In example : this command will result with change extensions of all *.txt files in current directory to *.text :
 
-```bash
+***
+```console
 $ ls
 
 file1.txt	file2.txt	file3.txt
@@ -27,3 +29,5 @@ Renaming extension of file3.txt -> file3.text
 $ ls
 
 file1.text	file2.text	file3.text
+```
+***