fix 404s (#1217)

Author: SethTisue

_events/2015-10-08-applyscala.md

@@ -6,5 +6,5 @@ location: Amsterdam
 description: "Scala experience from the trenches"
 start: 8 October 2015
 end: 9 October 2015
-link-out: http://applyconf.com/scala/
+link-out: https://www.applyconf.com
 ---

_posts/2014-01-28-release-notes-2.11.0-M8.md

@@ -14,7 +14,7 @@ If your code compiled on 2.10.x without deprecation warnings, it should compile
 We are working with the community to ensure availability of the core artifacts of the Scala 2.11.x eco-system.
 This release is *not* binary compatible with the 2.10.x series, so that we can keep improving the Scala standard library.
 
-Scala 2.11.0-M8 is available for download from [scala-lang.org](https://scala-lang.org/download/2.11.0-M8.html)
+Scala 2.11.0-M8 is available for download from scala-lang.org
 or from [Maven Central](https://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.scala-lang%22%20AND%20v%3A%222.11.0-M8%22).
 
 The Scala team and contributors [fixed 119 issues](https://issues.scala-lang.org/issues/?jql=project+%3D+SI+AND+fixVersion+%3D+%22Scala+2.11.0-M8%22+AND+status+%3D+CLOSED+ORDER+BY+priority+DESC) via [174 merged pull requests](https://github.com/scala/scala/issues?milestone=26&page=1&state=closed)!

_posts/2014-05-21-release-notes-2.11.1.md

@@ -14,7 +14,7 @@ This release contains [an important fix](https://github.com/scala/scala/pull/371
 The fix necessarily breaks serialization compatibility between 2.11.0 and 2.11.1 (this is separate from binary compatibility, which is maintained).
 
 Users of distributed systems that rely on serialization to exchange objects (such as akka) should upgrade to Scala 2.11.1 (and akka 2.3.3) immediately.
-We also strongly recommend that libraries that themselves declare classes with [@SerialVersionUID](https://www.scala-lang.org/api/2.11.1/index.html#scala.SerialVersionUID) annotations release a new version and ask their Scala 2.11 users to upgrade.
+We also strongly recommend that libraries that themselves declare classes with `@SerialVersionUID` annotations release a new version and ask their Scala 2.11 users to upgrade.
 
 We apologize for the breakage. We have included a new suite of tests that will ensure stability of serialization for the remainder of the 2.11.x series.
 

_posts/2020-06-29-one-click-install.md

@@ -20,7 +20,7 @@ You can find the instructions for macOS and Windows in the [Coursier documentati
 The command shown above will install all the following software, if not yet installed:
 
 * a JDK
-* the build tools [sbt](https://www.scala-sbt.org/) and [mill](https://www.lihaoyi.com/mill/)
+* the build tools [sbt](https://www.scala-sbt.org/) and [mill](https://github.com/com-lihaoyi/mill)
 * the [Ammonite](https://ammonite.io/) enhanced REPL
 * [scalafmt](https://scalameta.org/scalafmt/), the Scala formatter
 * the [coursier](https://get-coursier.io/docs/cli-overview) CLI, to install further Scala-based applications

documentation/reference.md

@@ -156,7 +156,7 @@ includeTOC: true
     * [Parser Combinators API](https://www.scala-lang.org/api/2.11.11/scala-parser-combinators/)
     * [Actors API](https://www.scala-lang.org/api/2.11.11/scala-actors/#scala.actors.package) (deprecated)
     * [Swing API](https://www.scala-lang.org/api/2.11.11/scala-swing/#scala.swing.package)
-    * [Continuations API](https://www.scala-lang.org/files/archive/api/2.11.11/scala-continuations-library/#scala.util.continuations.package)    
+    * [Continuations API](https://www.scala-lang.org/files/archive/api/2.11.11/scala-continuations-library/#scala.util.continuations.package)
 * Scala 2.11.8
   * [Standard Library API](https://www.scala-lang.org/api/2.11.8/)
   * [Compiler API](https://www.scala-lang.org/api/2.11.8/scala-compiler/)
@@ -237,33 +237,6 @@ includeTOC: true
     * [Actors API](https://www.scala-lang.org/api/2.11.0/scala-actors/#scala.actors.package) (deprecated)
     * [Swing API](https://www.scala-lang.org/api/2.11.0/scala-swing/#scala.swing.package)
     * [Continuations API](https://www.scala-lang.org/files/archive/api/2.11.0/scala-continuations-library/#scala.util.continuations.package)
-* [Scala 2.10.6](https://www.scala-lang.org/api/2.10.6/)
-* [Scala 2.10.5](https://www.scala-lang.org/api/2.10.5/)
-* [Scala 2.10.4](https://www.scala-lang.org/api/2.10.4/)
-* [Scala 2.10.3](https://www.scala-lang.org/api/2.10.3/)
-* [Scala 2.10.2](https://www.scala-lang.org/api/2.10.2/)
-* [Scala 2.10.1](https://www.scala-lang.org/api/2.10.1/)
-* [Scala 2.9.3](https://www.scala-lang.org/api/2.9.3/)
-* [Scala 2.9.2](https://www.scala-lang.org/api/2.9.2/)
-* [Scala 2.9.1-1](https://www.scala-lang.org/api/2.9.1-1/)
-* [Scala 2.9.1.final](https://www.scala-lang.org/api/2.9.1/)
-* [Scala 2.9.0.1](https://www.scala-lang.org/api/2.9.0.1/)
-* [Scala 2.9.0.final](https://www.scala-lang.org/api/2.9.0/)
-* [Scala 2.8.2.final](https://www.scala-lang.org/api/2.8.2/)
-* [Scala 2.8.1.final](https://www.scala-lang.org/api/2.8.1/)
-* [Scala 2.8.0.final](https://www.scala-lang.org/api/2.8.0/)
-* [Scala 2.7.7.final](https://www.scala-lang.org/api/2.7.7/)
-* [Scala 2.7.6.final](https://www.scala-lang.org/api/2.7.6/)
-* [Scala 2.7.5.final](https://www.scala-lang.org/api/2.7.5/)
-* [Scala 2.7.4.final](https://www.scala-lang.org/api/2.7.4/)
-* [Scala 2.7.3.final](https://www.scala-lang.org/api/2.7.3/)
-* [Scala 2.7.2.final](https://www.scala-lang.org/api/2.7.2/)
-* [Scala 2.7.1.final](https://www.scala-lang.org/api/2.7.1/)
-* [Scala 2.7.0.final](https://www.scala-lang.org/api/2.7.0/)
-* [Scala 2.6.1.final](https://www.scala-lang.org/api/2.6.1/)
-* [Scala 2.6.0.final](https://www.scala-lang.org/api/2.6.0/)
-* [Scala 2.5.1.final](https://www.scala-lang.org/api/2.5.1/)
-* [Scala 2.5.0.final](https://www.scala-lang.org/api/2.5.0/)
 
 ## Language Specification
 The language specification is a formal description of the syntax and semantics of the language.