Corrected typo in new method name

Author: sabaranski

WordPressKit/WordPressComServiceRemote+SiteVerticals.swift

@@ -79,7 +79,7 @@ public extension WordPressComServiceRemote {
     ///   - request:    the value object with which to compose the request.
     ///   - completion: a closure including the result of the request for site verticals.
     ///
-    func retrievalVerticals(request: SiteVerticalsRequest, completion: @escaping SiteVerticalsServiceCompletion) {
+    func retrieveVerticals(request: SiteVerticalsRequest, completion: @escaping SiteVerticalsServiceCompletion) {
 
         let endpoint = "verticals"
         let path = self.path(forEndpoint: endpoint, withVersion: ._2_0)

WordPressKitTests/WordPressComServiceRemoteTests+SiteVerticals.swift

@@ -17,7 +17,7 @@ final class SiteCreationVerticalsTests: RemoteTestCase, RESTTestable {
         // When, Then
         let verticalsExpectation = expectation(description: "Initiate site verticals request")
         let remote = WordPressComServiceRemote(wordPressComRestApi: getRestApi())
-        remote.retrievalVerticals(request: request) { result in
+        remote.retrieveVerticals(request: request) { result in
             verticalsExpectation.fulfill()
 
             switch result {