fix 404 link

Author: SethTisue

blog/_posts/2020-10-27-bsp-in-sbt.md

@@ -103,7 +103,7 @@ The BSP structure of an sbt project mirrors the exact structure of the build def
 
 ### The sbt task graph
 
-An sbt build definition is highly customizable. The list of [available plugins](https://www.scala-sbt.org/release/docs/Community-Plugins.html) is very large and covers a lot of use cases.
+An sbt build definition is highly customizable. The list of [available plugins](https://www.scala-sbt.org/1.x/docs/Community-Plugins.html) is very large and covers a lot of use cases.
 
 In addition to plugins, you can shape the task graph of your build by defining new settings and tasks, overloading existing tasks or adding new dependencies between tasks. sbt can merely execute any piece of Scala code at any point in the build task graph.