about.md: Correct in-tree test command

Change-Id: I5bc854b8708838fcd9ee55482091b9105288a03e
diff --git a/src/main/resources/Documentation/build.md b/src/main/resources/Documentation/build.md
index 8e5bbf7..47eb5a9 100644
--- a/src/main/resources/Documentation/build.md
+++ b/src/main/resources/Documentation/build.md
@@ -61,7 +61,7 @@
 To execute the tests run:
 
 ```
-  bazel test plugins/@PLUGIN@:go_import_tests
+  bazel test plugins/@PLUGIN@:go-import_tests
 ```
 
 How to build the Gerrit Plugin API is described in the [Gerrit