[incubator-skywalking] 01/01: Add a document link in plugin contribution.

[wu...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

wusheng pushed a commit to branch new-doc
in repository https://gitbox.apache.org/repos/asf/incubator-skywalking.git

commit ec636d93cf4d8fbcfe62c6dd93cad8250b7b1ec8
Author: Wu Sheng <wu...@foxmail.com>
AuthorDate: Sat Dec 8 20:26:49 2018 +0800

    Add a document link in plugin contribution.
---
 docs/en/guides/Java-Plugin-Development-Guide.md | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/docs/en/guides/Java-Plugin-Development-Guide.md b/docs/en/guides/Java-Plugin-Development-Guide.md
index 7de1317..5de9406 100644
--- a/docs/en/guides/Java-Plugin-Development-Guide.md
+++ b/docs/en/guides/Java-Plugin-Development-Guide.md
@@ -281,9 +281,12 @@ We are welcome everyone to contribute plugins.
 
 Please follow there steps:
 1. Submit an issue about which plugins are you going to contribute, including supported version.
-1. Create sub modules under `apm-sniffer/apm-sdk-plugin`, and the name should include supported library name and versions
+1. Create sub modules under `apm-sniffer/apm-sdk-plugin` or `apm-sniffer/optional-plugins`, and the name should include supported library name and versions
 1. Follow this guide to develop. Make sure comments and test cases are provided.
 1. Develop and test.
-1. Send the pull request and ask for review, and provide the automatic test cases by following PMC members guides.
+1. Send the pull request and ask for review. 
+1. Provide the automatic test cases. 
+All test cases are hosted in [SkywalkingTest/skywalking-agent-testcases repository](https://github.com/SkywalkingTest/skywalking-agent-testcases).
+About how to write a test case, follow the [How to write](https://github.com/SkywalkingTest/skywalking-agent-testcases/blob/master/docs/how-to-write-a-plugin-testcase.md) document.
 1. The plugin committers approves your plugins after automatic test cases provided and the tests passed in our CI.
 1. The plugin accepted by SkyWalking.