Update README.md

Author: peterli-r3

Basic/ping-pong/README.md

@@ -1,5 +1,4 @@
-# Ping-Pong CorDapp [<img src="../../webIDE.png" height=25 />](https://ide.corda.net/?folder=/home/coder/samples-java/Basic/ping-pong)
-
+# Ping-Pong CorDapp 
 This CorDapp allows a node to ping any other node on the network that also has this CorDapp installed.
 
 It demonstrates how to use Corda for messaging and passing data using a [flow](https://docs.corda.net/docs/corda-os/flow-state-machines.html#flow-sessions) without saving any states or using any contracts.
@@ -20,7 +19,7 @@ We define a state (the "ping" to be shared), define a contract (the way to make
 You'll notice in our code we call these two classes ping and pong, the flow that sends the `"ping"`, and the flow that returns with a `"pong"`.
 
 
-Take a look at [Ping.java](./workflows-java/src/main/java/net/corda/examples/pingpong/flows/Ping.java#L20-L28).
+Take a look at `Ping.java`.
 
 You'll notice that this flow does what we expect, which is to send an outbound ping, and expect to receive a pong. If we receive a pong, then our flow is sucessful.