diff --git a/06-building-container-images/Makefile b/06-building-container-images/Makefile
index 6286c83..9c2d4de 100644
--- a/06-building-container-images/Makefile
+++ b/06-building-container-images/Makefile
@@ -50,8 +50,8 @@ CMD and ENTRYPOINT.
 
 The image has the following:
 
- ENTRYPOINT [ "echo", "Hey Team 👋 (entrypoint)" ]
- CMD [ "+ (cmd)" ]
+  ENTRYPOINT [ "echo", "Hey Team 👋 (entrypoint)" ]
+  CMD [ "+ (cmd)" ]
 
 ✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅
 
diff --git a/06-building-container-images/client-react/Dockerfile.5 b/06-building-container-images/client-react/Dockerfile.5
index 76ddbcb..19310d8 100644
--- a/06-building-container-images/client-react/Dockerfile.5
+++ b/06-building-container-images/client-react/Dockerfile.5
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1.5
+
 FROM node:19.4-bullseye AS build
 
 # Specify working directory other than /
diff --git a/07-container-registries/Dockerfile b/07-container-registries/Dockerfile
new file mode 100644
index 0000000..24ec1ac
--- /dev/null
+++ b/07-container-registries/Dockerfile
@@ -0,0 +1,2 @@
+# Empty dockerfile to demonstrate pushing to registries
+FROM scratch
\ No newline at end of file
diff --git a/07-container-registries/Makefile b/07-container-registries/Makefile
new file mode 100644
index 0000000..5d504a6
--- /dev/null
+++ b/07-container-registries/Makefile
@@ -0,0 +1,23 @@
+.PHONY: build
+build:
+	docker build --tag my-scratch-image .
+
+# Have to authenticate to dockerhub and create repo first:
+# https://docs.docker.com/engine/reference/commandline/login/
+.PHONY: push-dockerhub
+push-dockerhub: build
+	docker tag my-scratch-image sidpalas/my-scratch-image # defaults to latest
+	docker push sidpalas/my-scratch-image
+
+	docker tag my-scratch-image sidpalas/my-scratch-image:abc-123 # defaults to latest
+	docker push sidpalas/my-scratch-image:abc-123
+
+# Have to authenticate to ghcr.io first
+# https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry#authenticating-to-the-container-registry
+.PHONY: push-github-packages
+push-github-packages: build
+	docker tag my-scratch-image ghcr.io/sidpalas/my-scratch-image # defaults to latest
+	docker push ghcr.io/sidpalas/my-scratch-image
+
+	docker tag my-scratch-image ghcr.io/sidpalas/my-scratch-image:abc-123 # defaults to latest
+	docker push ghcr.io/sidpalas/my-scratch-image:abc-123