Link to the plugin complement of SCP-009

Author: adriaanm

news/_posts/2017-04-18-releases-1Q17.md

@@ -13,7 +13,7 @@ For the highlights of these three releases, read on.
 
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-[Scala 2.11.11](https://github.com/scala/scala/releases/tag/v2.11.11) contains many smaller fixes and a few backports from 2.12. It also features improved error messages on missing dependencies; this improvement was developed by @jvican at the Scala Center under proposal SCP-009.
+[Scala 2.11.11](https://github.com/scala/scala/releases/tag/v2.11.11) contains many smaller fixes and a few backports from 2.12. It also features improved error messages on missing dependencies; this improvement was developed by @jvican at the Scala Center under proposal SCP-009, which aims to speed up builds by [shrinking the build classpath](https://github.com/scalacenter/classpath-shrinker).
 
 (Yes, we skipped 2.11.9 and 2.11.10. Special thanks to @xuwei-k and @sjrd for reporting and helping diagnose the regressions in those withdrawn releases.)