[incubator-skywalking] branch master updated: Update How-to-build.md (#2002)

[wu...@apache.org]

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


The following commit(s) were added to refs/heads/master by this push:
     new d75a147  Update How-to-build.md (#2002)
d75a147 is described below

commit d75a1472b5a1805d8d0ab5060a7fb2255747c15e
Author: 吴晟 Wu Sheng <wu...@foxmail.com>
AuthorDate: Tue Dec 4 22:50:43 2018 +0800

    Update How-to-build.md (#2002)
---
 docs/en/guides/How-to-build.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/docs/en/guides/How-to-build.md b/docs/en/guides/How-to-build.md
index 25059ce..3e516bf 100644
--- a/docs/en/guides/How-to-build.md
+++ b/docs/en/guides/How-to-build.md
@@ -14,7 +14,11 @@ This document helps people to compile and build the project in your maven and se
 1. Run `./mvnw clean package -DskipTests`
 1. All packages are in `/dist`.(.tar.gz for Linux and .zip for Windows).
 
-### Build from Apache source codes
+### Build from Apache source code release
+- What is `Apache source code release`?
+
+For each official Apache release, there is a complete and independent source code tar, which is including all source codes. You could download it from [SkyWalking Apache download page](http://skywalking.apache.org/downloads/). No git related stuff required when compiling this. Just follow these steps.
+
 1. Prepare JDK8 and maven3
 1. Run `./mvnw clean package -DskipTests`
 1. All packages are in `/dist`.(.tar.gz for Linux and .zip for Windows).