[CORD-772] Example UI Extension update for platform install

Change-Id: I673869b28401d9c5321320ed2b69a282578d0e9f
diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..de807ff
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,3 @@
+node_modules
+typings
+npm-debug.log
\ No newline at end of file