7794: Update the link to the adoptium download site

Reviewed-by: hirt, clanger

Author: ecki

README.md

@@ -10,12 +10,12 @@ For more information on Mission Control, see http://www.oracle.com/missioncontro
 ## Downloading Builds
 Binary distributions of JDK Mission Control are provided by different downstream vendors.
 
-### AdoptOpenJDK
+### Eclipse Adoptium
 * Released version
 * EA builds of upcoming release
 * Downloadable Eclipse update site archive
 
-[http://adoptopenjdk.net/jmc](http://adoptopenjdk.net/jmc)
+[https://adoptium.net/jmc](https://adoptium.net/jmc)
 
 
 ### Azul (Zulu Mission Control)