Update README.md

Co-authored-by: Yun Peng <pcloudy@google.com>

README.md

diff --git a/README.md b/README.md
index fa3e575..7d90c53 100644
--- a/README.md
+++ b/README.md
@@ -80,5 +80,5 @@
 are, by definition, not global.
 
 If you really need a permanent global change and it isn't design-approved for
-this repo, contact start a thread on
+this repo, start a thread on
 [GitHub](https://github.com/bazelbuild/bazel/discussions) to discuss options.