Update README variable syntax to prevent issues with Markdown syntax

Author: pH-7

src/Command/Markdown/Builder.php

@@ -42,12 +42,13 @@ private function parse(string $contents): string
     {
         return str_ireplace(
             [
-                '[TITLE]',
-                '[HEADING]',
-                '[DESCRIPTION]',
-                '[AUTHOR]',
-                '[EMAIL]',
-                '[LICENSE]',
+                ':TITLE:',
+                ':HEADING:',
+                ':DESCRIPTION:',
+                ':AUTHOR:',
+                ':EMAIL:',
+                ':LICENSE_NAME:',
+                ':LICENSE_LINK:'
             ],
             [
                 $this->title,

src/Command/Markdown/view/readme-template.md

@@ -1,14 +1,14 @@
-# [TITLE]
+# :TITLE:
 
-## [HEADING]
+## :HEADING:
 
-[DESCRIPTION]
+:DESCRIPTION:
 
 ## About
 
-[AUTHOR], [EMAIL]
+:AUTHOR:, :EMAIL:
 
 
 ## License
 
-[LICENSE]
+[:LICENSE_NAME:](:LICENSE_LINK:)