demos --> examples

examples/ is pretty standard whereas demos/ isn't. So I just refactored that.

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

examples/helloWorld/deployment.yaml

@@ -0,0 +1,30 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: the-deployment
+spec:
+  replicas: 3
+  template:
+    metadata:
+      labels:
+        deployment: hello
+    spec:
+      containers:
+      - name: the-container
+        image: monopole/hello:1
+        command: ["/hello",
+                  "--port=8080",
+                  "--enableRiskyFeature=$(ENABLE_RISKY)"]
+        ports:
+        - containerPort: 8080
+        env:
+        - name: ALT_GREETING
+          valueFrom:
+            configMapKeyRef:
+              name: the-map
+              key: altGreeting
+        - name: ENABLE_RISKY
+          valueFrom:
+            configMapKeyRef:
+              name: the-map
+              key: enableRisky