fix dead link

Remi-Gau · Remi-Gau · commit 9e6f7a2934bd · 2020-09-30T18:00:02.000+02:00
diff --git a/README.md b/README.md
@@ -183,7 +183,6 @@ In practice, we use the following regular expression for function names:
 >
 > -   A quick [intro to regular expression](https://www.rexegg.com/)
 > -   And many websites allow you to "design and test" your regular expression:
->     -   [regexr](https://regexr.com/)
 >     -   [regexper](https://regexper.com/#%5Ba-z%5D%2B%28%28%5BA-Z%5D%7C%5B0-9%5D%29%7B1%7D%5Ba-z%5D%2B%29)
 >     -   ...
 

Original file line number	Diff line number	Diff line change
`@@ -183,7 +183,6 @@ In practice, we use the following regular expression for function names:`
`183`	`183`	`>`
`184`	`184`	`> - A quick [intro to regular expression](https://www.rexegg.com/)`
`185`	`185`	`> - And many websites allow you to "design and test" your regular expression:`
`186`		`-> - [regexr](https://regexr.com/)`
`187`	`186`	`> - [regexper](https://regexper.com/#%5Ba-z%5D%2B%28%28%5BA-Z%5D%7C%5B0-9%5D%29%7B1%7D%5Ba-z%5D%2B%29)`
`188`	`187`	`> - ...`
`189`	`188`