Update docs/walkthrough.md

Co-authored-by: Aaron Schlesinger <70865+arschles@users.noreply.github.com>
Signed-off-by: Marco Piovesana <piovesana@esteco.com>

docs/walkthrough.md

@@ -22,7 +22,7 @@ You'll need to clone the repository to get access to this chart. If you have you
 
 ## Creating an `HTTPScaledObject`
 
-You interact with the operator via a CRD called `HTTPScaledObject`. This CRD object points the request for an `Host` to a `Service`. To get an example app up and running, read the notes below and then run the subsequent command from the root of this repository.
+You interact with the operator via a CRD called `HTTPScaledObject`. This CRD object instructs interceptors to forward requests for a given host to your app's backing `Service`. To get an example app up and running, read the notes below and then run the subsequent command from the root of this repository.
 
 ```shell
 kubectl create -f -n $NAMESPACE examples/v0.0.2/httpscaledobject.yaml