A regex tutorial

Title (replace with your title)

Introductory paragraph (replace this with your text)
Summary

Briefly summarize the regex you will be describing and what you will explain. Include a code snippet of the regex. Replace this text with your summary.
Table of Contents

    Anchors
    Quantifiers
    Grouping Constructs
    Bracket Expressions
    Character Classes
    The OR Operator
    Flags
    Character Escapes

Regex Components
Anchors
Quantifiers
Grouping Constructs
Bracket Expressions
Character Classes
The OR Operator
Flags
Character Escapes
Author

A short section about the author with a link to the author's GitHub profile (replace with your information and a link to your profile)