commit 80d675dbe25616e80813086ad29ae8a72c33d5fe
author zhang-wei <pknfe@outlook.com> Sat Mar 07 00:58:26 2020 +0800
committer GitHub <noreply@github.com> Sat Mar 07 00:58:26 2020 +0800
tree f0bccd0799f096c6c9558c5ef3fc45436622d362
parent 54a87c1ca86390478a4172c93896ae09a9899478

Fix README.md (#17)

README.md

diff --git a/README.md b/README.md
index 3532268..0637301 100644
--- a/README.md
+++ b/README.md
@@ -114,7 +114,7 @@
 
 ## Nginx APIs
 - **startTimer**, `require("client"):startBackendTimer("http://127.0.0.1:8080")`. Start the backend timer. This timer register the metadata and report traces to the backend.
-- **start**, `require("tracer"):start()`. Begin the tracing before the upstream begin.
+- **start**, `require("tracer"):start("upstream service")`. Begin the tracing before the upstream begin.
 - **finish**, `require("tracer"):finish()`. Finish the tracing for this HTTP request.
 - **prepareForReport**, `require("tracer"):prepareForReport()`. Prepare the finished segment for further report.