Update README.md

Updated the readme to be more descriptive.

Author: WillemZeiler

Specialized Areas/Regular Expressions/Check if number has 10 digits/README.md

@@ -1 +1,11 @@
-Script is used to check if the number has 10 digts( you can update the digit count in the code based on the need.
+# Digit Length Validator
+
+## Description
+
+This script checks if a string contains exactly a specified number of digits. Useful for validating numeric input. The digit count can be adjusted in the code.
+
+## Usage
+To change the required digit count, update the number in the regular expression
+```
+var digitLengthRegex = /^\d{N}$/;  // Replace N with desired digit count
+```