initial checkin, adjust LEVEL


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7862 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/runtime/libtrace/README.txt b/runtime/libtrace/README.txt
new file mode 100644
index 0000000..80fee9b
--- /dev/null
+++ b/runtime/libtrace/README.txt
@@ -0,0 +1,2 @@
+These routines form the support library for the LLVM -trace and -tracem 
+instrumentation passes.