add README on how to build this repo, or the ITests, or both

Signed-off-by: nickboldt <nboldt@redhat.com>
diff --git a/README.adoc b/README.adoc
new file mode 100644
index 0000000..e55dfe5
--- /dev/null
+++ b/README.adoc
@@ -0,0 +1,17 @@
+## Building this repo
+
+1. fetch sources from http://git.eclipse.org/c/servertools/webtools.servertools.git/
+
+    git clone http://git.eclipse.org/gitroot/servertools/webtools.servertools.git
+
+2. build the normal repo
+
+    mvn clean install
+
+3. build the integration tests repo
+
+    mvn clean install -P integration-tests,CI
+
+4. or, build both at the same time
+
+    mvn clean install -P normal,integration-tests,CI