Documentation: Refactor to match other plugin documentation

Move in-tree testing section before eclipse-related section for
consistency across other plugins and also to match standalone case.

Change-Id: I66f5f0e89cff8be3c9e18d85230063ceb38806ab

src/main/resources/Documentation/build.md

diff --git a/src/main/resources/Documentation/build.md b/src/main/resources/Documentation/build.md
index bf939f9..68e848c 100644
--- a/src/main/resources/Documentation/build.md
+++ b/src/main/resources/Documentation/build.md
@@ -61,14 +61,6 @@
   bazel-bin/plugins/@PLUGIN@/@PLUGIN@.jar
 ```
 
-This project can be imported into the Eclipse IDE:
-Add the plugin name to the `CUSTOM_PLUGINS` in `tools/bzl/plugins.bzl`, and
-execute:
-
-```
-  ./tools/eclipse/project.py
-```
-
 To execute the tests run either one of:
 
 ```
@@ -76,6 +68,13 @@
   bazel test plugins/@PLUGIN@:@PLUGIN@_tests
 ```
 
+This project can be imported into the Eclipse IDE:
+Add the plugin name to the `CUSTOM_PLUGINS` in `tools/bzl/plugins.bzl`, and
+execute:
+
+```
+  ./tools/eclipse/project.py
+```
 
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