Update CHANGES

Signed-off-by: Rudi Grinberg <[email protected]>

CHANGES.md

@@ -22,7 +22,7 @@ unreleased
 - Install .cmi files of private modules in a `.private` directory (#1983, fix
   #1973 @rgrinberg)
 
-- Fix dune subst attempting to sunbstitute on directories. (#2000, fix #1997,
+- Fix `dune subst` attempting to substitute on directories. (#2000, fix #1997,
   @rgrinberg)
 
 - Do not list private modules in the generated index. (#2009, fix #2008,
@@ -31,6 +31,9 @@ unreleased
 - Warn instead of failing if an opam file fails to parse. This opam file can
   still be used to define scope. (#2023, @rgrinberg)
 
+- Do not exit dune if some source directories are unreadable. Instead, warn the
+  user that such directories need to be ignored (#2004, fix #310, @rgrinberg)
+
 1.8.2 (10/03/2019)
 ------------------