xk6-disruptor: add sidebar link to the interactive demo

Author: ppcano

src/data/markdown/docs/40 xk6-disruptor/04 Examples/01 Inject Grpc faults into Service.md

@@ -1,6 +1,6 @@
 ---
 title: 'Inject gRPC faults into Service'
-excerpt: ''
+excerpt: 'This example shows how to test the effect of faults injected in the gRPC requests served by a service.'
 ---
 
 This example shows a way to use the [ServiceDisruptor](/javascript-api/xk6-disruptor/api/servicedisruptor) to test the effect of faults injected in the gRPC requests served by a service.

src/data/markdown/docs/40 xk6-disruptor/04 Examples/02 Inject HTTP faults into Pod.md

@@ -1,6 +1,6 @@
 ---
 title: 'Inject HTTP faults into Pod'
-excerpt: ''
+excerpt: 'This example shows how to test the effect of faults injected in the HTTP requests served by a pod.'
 ---
 
 This example shows how [PodDisruptor](/javascript-api/xk6-disruptor/api/poddisruptor) can be used for testing the effect of faults injected in the HTTP requests served by a pod.

src/data/markdown/docs/40 xk6-disruptor/04 Examples/03 demo-environment.md

@@ -0,0 +1,4 @@
+---
+title: 'Interactive demo'
+redirect: 'https://killercoda.com/grafana-xk6-disruptor/scenario/killercoda'
+---