docs: Fix typos, and rephrase the 1st step of the tutorial.

docs/book/src/cronjob-tutorial/pprof-tutorial.md

@@ -20,7 +20,7 @@ While [Pprof][github-repo] is an excellent tool for profiling and debugging, it
 
 ## How to use Pprof in your Codebase
 
-1. In your `cmd/main.go` file, specify the `PprofBindAddress` URL field as part of Controller Manager's configurations:
+1. In your `cmd/main.go` file, add the following `controller-runtime` manager field to enable the `pprof` endpoints:
 
     ```golang
     mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
@@ -50,15 +50,15 @@ While [Pprof][github-repo] is an excellent tool for profiling and debugging, it
     curl -s "http://127.0.0.1:8082/debug/pprof/profile" > ./cpu-profile.out
     ```
 
-5. Visualize the results onin an interactive dashboard.
+5. Visualize the results on an interactive dashboard.
 
     ```bash
     # Go tool will open a session on port 8080.
     # You can change this as per your own need.
     go tool pprof -http=:8080 ./cpu-profile.out
     ```
 
-    Visualizaion resutl will vary depending on the deployed workload, and the Controller's behavior.
+    Visualizaion resutls will vary depending on the deployed workload, and the Controller's behavior.
     However, you'll see a dashboard on your browser similar to this one:
 
     ![pprof-result-visualization](./images/pprof-result-visualization.png)