chore: fix grammar (#502)

Author: jbampton

README.md

@@ -131,7 +131,7 @@ windows | 386 (32-bit), amd64 (64-bit)
 
 The project includes its own packaged version of Gradle called Gradle Wrapper which is invoked using the `./gradlew` command on Linux/Unix/Mac or `gradlew.bat` on Windows.
 
-1. Gradle requires requires you to [install Java JDK version 8](https://gradle.org/install/) or higher
+1. Gradle requires you to [install Java JDK version 8](https://gradle.org/install/) or higher
 
 1. Clone the `openwhisk-cli` repo:
 

commands/activation.go

@@ -276,7 +276,7 @@ func lastFlag(args []string) ([]string, error) {
 			whisk.Debug(whisk.DbgError, "Client.Activations.List(%#v) error during lastFlag: %s\n", options, err)
 			return args, err
 		}
-		if len(activations) == 0 { // Checks to to see if there are activations available
+		if len(activations) == 0 { // Checks to see if there are activations available
 			whisk.Debug(whisk.DbgError, "No activations found in activation list\n")
 			errStr := wski18n.T("Activation list does not contain any activations.")
 			whiskErr := whisk.MakeWskError(errors.New(errStr), whisk.EXIT_CODE_ERR_GENERAL, whisk.DISPLAY_MSG, whisk.DISPLAY_USAGE)