fix dead ScalaUA links (#1332)

SethTisue · web-flow · commit 4fffe193ab84 · 2022-01-23T18:32:53.000-08:00
diff --git a/_events/2016-04-08-scalaua.md b/_events/2016-04-08-scalaua.md
@@ -6,5 +6,5 @@ location: Kyiv, Ukraine
 description: the Scala-community-driven conference for developers
 start: 8 April 2016
 end: 9 April 2016
-link-out: https://www.scalaua.com/april2016/
+link-out: https://twitter.com/scalaua_conf
 ---
diff --git a/_events/2017-04-07-scalaua.md b/_events/2017-04-07-scalaua.md
@@ -6,5 +6,5 @@ location: Kyiv, Ukraine
 description: the Scala-community-driven conference for developers
 start: 7 April 2017
 end: 8 April 2017
-link-out: https://www.scalaua.com/april2017/
+link-out: https://twitter.com/scalaua_conf
 ---
diff --git a/_events/2018-04-20-scalaua.md b/_events/2018-04-20-scalaua.md
@@ -6,5 +6,5 @@ location: Kyiv, Ukraine
 description: the Scala-community-driven conference for developers
 start: 20 April 2018
 end: 21 April 2018
-link-out: https://www.scalaua.com/april2018/
+link-out: https://twitter.com/scalaua_conf
 ---
diff --git a/_events/2019-03-29-scalaua.md b/_events/2019-03-29-scalaua.md
@@ -6,5 +6,5 @@ location: Kyiv, Ukraine
 description: the Scala-community-driven conference for developers
 start: 29 March 2019
 end: 30 March 2019
-link-out: https://www.scalaua.com/march2019/
+link-out: https://twitter.com/scalaua_conf
 ---
diff --git a/_events/2020-04-03-scalaua.md b/_events/2020-04-03-scalaua.md
@@ -6,5 +6,5 @@ location: Virtual
 description: "Community driven conference for developers"
 start: 03 Apr 2020
 end: 04 Apr 2020
-link-out: https://www.scalaua.com/
+link-out: https://twitter.com/scalaua_conf
 ---
