Changelog update for #2852

Author: mgsloan

ChangeLog.md

@@ -4,6 +4,8 @@
 
 Bug fixes:
 
+* `stack config set` can now be used without a compiler installed
+  [#2852](https://github.com/commercialhaskell/stack/issues/2852).
 * `get-stack.sh` now installs correct binary on ARM for generic linux and raspbian,
   closing [#2856](https://github.com/commercialhaskell/stack/issues/2856).