Add information about upstreaming LLVM patches.
Change-Id: If0b52ee90eccc5b2d51de309b8e52401ad5d1e46
diff --git a/src/source/submit-patches.md b/src/source/submit-patches.md
index 0ea530d..85fbe7f 100644
--- a/src/source/submit-patches.md
+++ b/src/source/submit-patches.md
@@ -199,6 +199,12 @@
[icu-project.org/](http://site.icu-project.org/).
See [Submitting ICU Bugs and Feature Requests](http://site.icu-project.org/bugs) for more.
+## LLVM/Clang/Compiler-rt ##
+
+All changes to LLVM-related projects (`external/clang`, `external/compiler-rt`,
+`external/llvm`) should be made upstream at
+[llvm.org/](http://llvm.org/).
+
## OpenSSL ##
All changes to the OpenSSL project at `external/openssl` should be made upstream at