update spec links and advisements

partially addresses scala/bug#11566

Author: SethTisue

_data/footer.yml

@@ -8,7 +8,7 @@
     - title: Overviews/Guides
       url: "https://docs.scala-lang.org/overviews"
     - title: Language Specification
-      url: "https://scala-lang.org/files/archive/spec/2.12/"
+      url: "https://scala-lang.org/files/archive/spec/2.13/"
 - title: Download
   class: download
   links:

contribute/bug-reporting-guide.md

@@ -44,7 +44,7 @@ If you have a code snippet that is resulting in bytecode which you believe is be
 
    5. If you want to file an improvement in the issue tracker please discuss it first on one of the mailing lists. They offer much bigger audience than issue tracker. The latter is not suitable for long discussions.
 
-* Keep in mind that the behavior you are witnessing could be intended. Good formal resources for verifying whether or not the language behavior is intended is either in the [Scala Improvement Proposal Documents](http://docs.scala-lang.org/sips/sip-list.html) or in the [Scala Language Specification](http://www.scala-lang.org/files/archive/spec/2.12/). If in doubt, you may always ask on the [Community Category](https://contributors.scala-lang.org/c/community) or [Stack Overflow](https://stackoverflow.com/questions/tagged/scala).
+* Keep in mind that the behavior you are witnessing could be intended. Good formal resources for verifying whether or not the language behavior is intended is either in the [Scala Improvement Proposal Documents](http://docs.scala-lang.org/sips/sip-list.html) or in the [Scala Language Specification](http://www.scala-lang.org/files/archive/spec/2.13/). If in doubt, you may always ask on the [Community Category](https://contributors.scala-lang.org/c/community) or [Stack Overflow](https://stackoverflow.com/questions/tagged/scala).
 
 In general, if you find yourself stuck on any of these steps, asking on [Scala Contributors](https://contributors.scala-lang.org/) can be helpful:
 

documentation/reference.md

@@ -221,5 +221,6 @@ includeTOC: true
 
 ## Language Specification
 The language specification is a formal description of the syntax and semantics of the language.
+* [Scala 2.13 Language Specification](https://www.scala-lang.org/files/archive/spec/2.13/)
 * [Scala 2.12 Language Specification](https://www.scala-lang.org/files/archive/spec/2.12/)
 * [Scala 2.11 Language Specification](https://www.scala-lang.org/files/archive/spec/2.11/)

download/changelog.md

@@ -7,6 +7,9 @@ includeTOC: true
 
 <!-- [ [2.10.0](#2.10.0) | [2.9.0](#2.9.0) | [2.8.0](#2.8.0) | [2.7.2](#2.7.2) | [2.7.1](#2.7.1) | [2.7.0](#2.7.0) | [2.6.1](#2.6.1) | [2.6.0](#2.6.0) | [2.5.0](#2.5.0) | [2.4.0](#2.4.0) | [2.3.2](#2.3.2) | [2.3.0](#2.3.0) | [2.1.8](#2.1.8) | [2.1.7](#2.1.7) | [2.1.5](#2.1.5) | [2.0](#2.0) ] -->
 
+## Changes in Version 2.13.0
+Please consult the [Scala 2.13.0 release notes](https://github.com/scala/scala/releases/tag/v2.13.0).
+
 ## Changes in Version 2.12.0
 Please consult the [Scala 2.12.0 release notes](/news/2.12.0).
 

index.md

@@ -29,7 +29,7 @@ apiDocs:
     - title: "Scala Documentation"
       url: "https://docs.scala-lang.org/"
     - title: "Language Specification"
-      url: "https://scala-lang.org/files/archive/spec/2.12/"
+      url: "https://scala-lang.org/files/archive/spec/2.13/"
 
 currentScalaVersion: "2.13.0"