Fix slack link (#209)

Twissi · web-flow · commit bb76eea214a4 · 2023-10-12T20:50:48.000+02:00
diff --git a/data/cities/de/leipzig.md b/data/cities/de/leipzig.md
@@ -42,4 +42,4 @@ Um mehr zu Erfahren, schaue auf unseren [Github Seite](http://github.com/opentec
 
 ## Kontakt
 
-Hast du noch Fragen, dann sende uns eine [E-Mail](mailto:leipzig@opentechschool.org) or melde dich in unserem [Slack](https://opentechschool-slack.herokuapp.com) (channel: #leipzig).
+Hast du noch Fragen, dann sende uns eine [E-Mail](mailto:leipzig@opentechschool.org) or melde dich in unserem [Slack](https://join.slack.com/t/opentechschool/shared_invite/zt-1mpx31hk2-C0~bk3sXUhzyT57f8J4Smg) (channel: #leipzig).
diff --git a/data/cities/en/leipzig.md b/data/cities/en/leipzig.md
@@ -44,4 +44,4 @@ We have a bunch ongoing projects and are always looking for people who like to c
 
 ## Contact
 
-You can send us an [email](mailto:leipzig@opentechschool.org) or join us at [Slack](https://opentechschool-slack.herokuapp.com) (channel: #leipzig).
+You can send us an [email](mailto:leipzig@opentechschool.org) or join us at [Slack](https://join.slack.com/t/opentechschool/shared_invite/zt-1mpx31hk2-C0~bk3sXUhzyT57f8J4Smg) (channel: #leipzig).

Original file line number	Diff line number	Diff line change
`@@ -42,4 +42,4 @@ Um mehr zu Erfahren, schaue auf unseren [Github Seite](http://github.com/opentec`
`42`	`42`
`43`	`43`	`## Kontakt`
`44`	`44`
`45`		`-Hast du noch Fragen, dann sende uns eine [E-Mail](mailto:[email protected]) or melde dich in unserem [Slack](https://opentechschool-slack.herokuapp.com) (channel: #leipzig).`
	`45`	`+Hast du noch Fragen, dann sende uns eine [E-Mail](mailto:[email protected]) or melde dich in unserem [Slack](https://join.slack.com/t/opentechschool/shared_invite/zt-1mpx31hk2-C0~bk3sXUhzyT57f8J4Smg) (channel: #leipzig).`
Original file line number	Diff line number	Diff line change
`@@ -44,4 +44,4 @@ We have a bunch ongoing projects and are always looking for people who like to c`
`44`	`44`
`45`	`45`	`## Contact`
`46`	`46`
`47`		`-You can send us an [email](mailto:[email protected]) or join us at [Slack](https://opentechschool-slack.herokuapp.com) (channel: #leipzig).`
	`47`	`+You can send us an [email](mailto:[email protected]) or join us at [Slack](https://join.slack.com/t/opentechschool/shared_invite/zt-1mpx31hk2-C0~bk3sXUhzyT57f8J4Smg) (channel: #leipzig).`