Add 2.13.0 to the JDK compatibility table (scala#1397)

Add 2.13.0 to the JDK compatibility table

Author: dwijnand

_overviews/jdk-compatibility/overview.md

@@ -18,8 +18,8 @@ This table shows the first Scala release in each series that works with each JVM
 | JVM version | Minimum Scala versions                                                                        |
 |:-----------:|:----------------------------------------------------------------------------------------------|
 | 12          | see [below](#jdk-12-compatibility-notes)                                                      |
-| 11          | 2.12.4, 2.11.12, 2.10.7 (but also, see [below](#jdk-11-compatibility-notes))                  |
-| 8           | 2.12.0, 2.11.0, 2.10.2                                                                        |
+| 11          | 2.13.0, 2.12.4, 2.11.12, 2.10.7 (but also, see [below](#jdk-11-compatibility-notes))          |
+| 8           | 2.13.0, 2.12.0, 2.11.0, 2.10.2                                                                |
 | 7           | 2.11.0, 2.10.0                                                                                |
 | 6           | 2.11.0, 2.10.0                                                                                |
 
@@ -43,7 +43,7 @@ Like the 2.12.x series, the Scala 2.13.x series will support Java 8 and higher.
 
 Although the table above jumps from 8 to 11, JDK 9 and 10 will probably also work wherever 11 does. But unlike 9 and 10, 11 is an LTS release, so 11 is what we actually test on and recommend.
 
-As of Scala 2.12.8 and 2.11.12, **JDK 11 support is incomplete**. Notably, `scalac` will not enforce the restrictions of the Java Platform Module System, which means that code that typechecks may incur linkage errors at runtime. Scala 2.13.x will eventually provide [rudimentary support](https://github.com/scala/scala/pull/7218) for this, but likely only in nightlies built on Java 11.
+As of Scala 2.13.0, 2.12.8 and 2.11.12, **JDK 11 support is incomplete**. Notably, `scalac` will not enforce the restrictions of the Java Platform Module System, which means that code that typechecks may incur linkage errors at runtime. Scala 2.13.x will eventually provide [rudimentary support](https://github.com/scala/scala/pull/7218) for this, but likely only in nightlies built on Java 11.
 
 JDK 11 support requires minimum sbt version 1.1.0, or 0.13.17 in the 0.13.x series.