Move the link to the list together with other text about builds

Author: eregon

README.md

@@ -20,8 +20,6 @@ This action currently supports these versions of MRI, JRuby and TruffleRuby:
 | `truffleruby` | 19.3.0 - 24.1.0, head |
 | `truffleruby+graalvm` | 21.2.0 - 24.1.0, head |
 
-The combinations of the available versions and runners can be seen [here](https://github.com/ruby/ruby-builder/releases/tag/toolcache).
-
 `ruby-debug` is the same as `ruby-head` but with assertions enabled (`-DRUBY_DEBUG=1`).
 
 Regarding Windows ruby master builds, `mingw` is a MSYS2/MinGW build, `head` & `ucrt` are MSYS2/UCRT64
@@ -55,8 +53,9 @@ The `mingw`, `ucrt` and `mswin` builds are generated by [ruby-loco](https://gith
 `jruby-head` is generated by [jruby-dev-builder](https://github.com/ruby/jruby-dev-builder),
 `truffleruby-head` is generated by [truffleruby-dev-builder](https://github.com/ruby/truffleruby-dev-builder)
 and `truffleruby+graalvm` is generated by [graalvm-ce-dev-builds](https://github.com/graalvm/graalvm-ce-dev-builds).
-The full list of available Ruby versions can be seen in [ruby-builder-versions.json](ruby-builder-versions.json)
-for Ubuntu and macOS and in [windows-versions.json](windows-versions.json) for Windows.
+The full list of available Ruby versions can be seen in [ruby-builder-versions.json](ruby-builder-versions.json) for Ubuntu and macOS
+(although some combinations are not available, see [the full list](https://github.com/ruby/ruby-builder/releases/tag/toolcache))
+and in [windows-versions.json](windows-versions.json) for Windows.
 
 ## Usage