Address self feedback

Author: crimsonfaith91

e2e.md

@@ -3,7 +3,7 @@
 This article outlines steps to run e2e tests on remote clusters for controllers created using `kubebuilder`. For example, after developing a database controller, the developer may want to run some e2e tests on a GKE cluster to verify the controller is working as expected. Currently, `kubebuilder` does not provide a template for running the e2e tests. This article serves to address this deficit.
 
 The steps are as follow:
-1.  Create a test file named `<some-file-name>_test.go` populated with template below (refer [this](https://github.com/foxish/application/blob/master/e2e/main_test.go)):
+1.  Create a test file named `<some-file-name>_test.go` populated with template below (referring [this](https://github.com/foxish/application/blob/master/e2e/main_test.go)):
 ```
 import (
     "k8s.io/client-go/tools/clientcmd"
@@ -36,24 +36,22 @@ var _ = Describe("<some-controller-name> should work", func() {
     }
 
     BeforeEach(func() {
-        // Create controller image StatefulSet using kubernetes client
-        // Note: Refer `install.yaml` created via `kubebuilder create config`
-        // to have an idea on what the StatefulSet's fields should look like
-        ......
-
-        // Create other necessary resources before starting each test
+        // Create environment-specific resources such as controller image StatefulSet,
+        // CRDs etc. Note: refer "install.yaml" created via "kubebuilder create config"
+        // command to have an idea of what resources to be created.
         ......
     })
 
     AfterEach(func() {
-        // Delete all created resources for testing purpose
+        // Delete all test-specific resources
         ......		
 
-        // Delete controller image StatefulSet
+        // Delete all environment-specific resources
         ......
     })
 
-    // Declare a list of testing specifications and corresponding test functions
+    // Declare a list of testing specifications with corresponding test functions
+    // Note: test-specific resources are normally created within the test functions
     It("should do something", func() {
         testDoSomething(k8sClient, roClient)
     })
@@ -62,4 +60,4 @@ var _ = Describe("<some-controller-name> should work", func() {
 ```
 2.  Write some controller-specific e2e tests
 3.  Build controller image and upload it to an image storage website such as [gcr.io](https://cloud.google.com/container-registry/)
-4.  `go test .` to run the e2e tests
+4.  `go test <path-to-test-file>`