Add target/ to .gitignore

Signed-off-by: Thanh Ha <thanh.ha@eclipse.org>
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b8c3a52
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+# Maven
+target/