Add Docker deploy instructions

Author: nooobcoder

Track 4_ReactJS_Web Development/Project/Docker/README.md

@@ -0,0 +1,7 @@
+**BUILD DOCKER IMAGE**
+
+```sh
+    docker build -t ankurpaul19/highradiustraining-servlet -f Dockerfile-servlet.dockerfile .
+
+    docker build -t ankurpaul19/highradiustraining-flask -f Dockerfile-flask.dockerfile .
+```