Change link to regex tutorial

Change link to regex tutorial. The previous one is paywalled on Medium.com. We received an issue about it: #4584

Author: alvinashcraft

hub/powertoys/powerrename.md

@@ -1,7 +1,7 @@
 ---
 title: PowerToys PowerRename utility for Windows
 description: A windows shell extension for bulk renaming of files
-ms.date: 08/03/2023
+ms.date: 08/06/2023
 ms.topic: article
 ms.localizationpriority: medium
 no-loc: [PowerRename, Windows, File Explorer, regex, Boost]
@@ -99,42 +99,43 @@ If selected, you can use the following patterns as part of the _Replace with_ te
 You can also use multiple counters in the same replace string and combine customizations.
 
 For example, given a _Search_ text `a` and a set of files:
+
 - a.jpg
 - ab.jpg
 - abc.jpg
 
 A _Replace with_ text `Image_${padding=4;increment=2;start=10}_` would produce the following:
+
 - Image_0010_.jpg
 - Image_0012_b.jpg
 - Image_0014_bc.jpg
 
-
 ## Replace using file creation date and time
 
 The creation date and time attributes of a file can be used in the _Replace with_ text by entering a variable pattern according to the table below. Selecting the tool-tip in the _Replace with_ field allows you to view and select from the supported patterns.
 
-| Variable pattern | Explanation
+| Variable pattern | Explanation |
 | :---             | :--- |
-| `$YYYY`          | Year, represented by a full four or five digits, depending on the calendar used.
-| `$YY`            | Year, represented only by the last two digits. A leading zero is added for single-digit years.
-| `$Y`             | Year, represented only by the last digit.
-| `$MMMM`          | Name of the month.
-| `$MMM`           | Abbreviated name of the month.
-| `$MM`            | Month, as digits with leading zeros for single-digit months.
-| `$M`             | Month, as digits without leading zeros for single-digit months.
-| `$DDDD`          | Name of the day of the week.
-| `$DDD`           | Abbreviated name of the day of the week.
-| `$DD`            | Day of the month, as digits with leading zeros for single-digit days.
-| `$D`             | Day of the month, as digits without leading zeros for single-digit days.
-| `$hh`            | Hours, with leading zeros for single-digit hours.
-| `$h`             | Hours, without leading zeros for single-digit hours.
-| `$mm`            | Minutes, with leading zeros for single-digit minutes.
-| `$m`             | Minutes, without leading zeros for single-digit minutes.
-| `$ss`            | Seconds, with leading zeros for single-digit seconds.
-| `$s`             | Seconds, without leading zeros for single-digit seconds.
-| `$fff`           | Milliseconds, represented by full three digits.
-| `$ff`            | Milliseconds, represented only by the first two digits.
-| `$f`             | Milliseconds, represented only by the first digit.
+| `$YYYY`          | Year, represented by a full four or five digits, depending on the calendar used. |
+| `$YY`            | Year, represented only by the last two digits. A leading zero is added for single-digit years. |
+| `$Y`             | Year, represented only by the last digit. |
+| `$MMMM`          | Name of the month. |
+| `$MMM`           | Abbreviated name of the month. |
+| `$MM`            | Month, as digits with leading zeros for single-digit months. |
+| `$M`             | Month, as digits without leading zeros for single-digit months. |
+| `$DDDD`          | Name of the day of the week. |
+| `$DDD`           | Abbreviated name of the day of the week. |
+| `$DD`            | Day of the month, as digits with leading zeros for single-digit days. |
+| `$D`             | Day of the month, as digits without leading zeros for single-digit days. |
+| `$hh`            | Hours, with leading zeros for single-digit hours. |
+| `$h`             | Hours, without leading zeros for single-digit hours. |
+| `$mm`            | Minutes, with leading zeros for single-digit minutes. |
+| `$m`             | Minutes, without leading zeros for single-digit minutes. |
+| `$ss`            | Seconds, with leading zeros for single-digit seconds. |
+| `$s`             | Seconds, without leading zeros for single-digit seconds. |
+| `$fff`           | Milliseconds, represented by full three digits. |
+| `$ff`            | Milliseconds, represented only by the first two digits. |
+| `$f`             | Milliseconds, represented only by the first digit. |
 
 For example, given the file names:
 
@@ -196,7 +197,7 @@ _When using the variables, "Match all occurrences" must be selected._
 
 There are great examples/cheatsheets available online to help you:
 
-[Regex tutorial — A quick cheatsheet by examples](https://medium.com/factory-mind/regex-tutorial-a-simple-cheatsheet-by-examples-649dc1c3f285)
+[Regular Expression Tutorial](https://www.regular-expressions.info/tutorial.html)
 
 [ECMAScript Regular Expressions Tutorial](https://o7planning.org/en/12219/ecmascript-regular-expressions-tutorial)