Update target docs to use new event definitions (#116)

Author: ttmarek

Diff for: docs/targets/amplitude.md

@@ -58,13 +58,9 @@ import {
 To use them, just specify the event type in your event definition:
 
 ```js
-const pageView = {
-  eventFields: (action): LogEvent => ({
-    hitType: 'logEvent',
-    eventType: 'pageview',
-    eventProperties: {
-       page: action.payload,
-    },
-  }),
-};
+const pageView = (action): LogEvent => ({
+  hitType: 'logEvent',
+  eventType: 'pageview',
+  eventProperties: { page: action.payload },
+});
 ```

Diff for: docs/targets/cordova-google-analytics.md

@@ -3,7 +3,7 @@
 ### Set Up
 
 1. Sign up for Google Analytics if you haven't already, and
-   [create a new mobile property](https://support.google.com/analytics/answer/1008015?hl=en). (Note, that it 
+   [create a new mobile property](https://support.google.com/analytics/answer/1008015?hl=en). (Note, that it
    must be a mobile app property, not a web property.) Make a note of your property's
    [tracking Id](https://support.google.com/analytics/answer/1008080).
 
@@ -13,7 +13,7 @@
 
     > **Tip:**
     > If you are using Ionic, initialize it in the onready callback. You may also want to install
-     the Angular 2 tooling from [http://ionicframework.com/docs/native/google-analytics/](http://ionicframework.com/docs/native/google-analytics/) 
+     the Angular 2 tooling from [http://ionicframework.com/docs/native/google-analytics/](http://ionicframework.com/docs/native/google-analytics/)
 
 3. Import the target, then provide it when creating middleware or a meta reducer:
 
@@ -26,7 +26,7 @@
 
 ### Usage
 
-Each event passed to the target is pushed to Google Analytics via the 
+Each event passed to the target is pushed to Google Analytics via the
 Google Analytics Plugin which installs the Google Analytics mobile SDK. The
 generated event must have a `hitType` property specifying the type of
 analytics event and any other properties required for the event type.
@@ -61,10 +61,8 @@ import {
 To use them, just specify the event type in your event definition:
 
 ```js
-const pageView = {
-  eventFields: (action): PageView => ({
-    hitType: 'pageview',
-    page: action.payload,
-  }),
-};
+const pageView = (action): PageView => ({
+  hitType: 'pageview',
+  page: action.payload,
+});
 ```

Diff for: docs/targets/google-tag-manager.md

@@ -47,12 +47,11 @@
 
   ```js
   // Given the following event definition
-  const pageview = {
-    eventFields: action => ({
-      hitType: 'pageview',
-      page: action.payload,
-    }),
-  };
+  const pageview = action => ({
+    hitType: 'pageview',
+    page: action.payload,
+  });
+
   // Say the action is equal to
   // { type: LOCATION_CHANGE, payload: '/home' }
   // The following object will get pushed to the dataLayer

Diff for: docs/targets/react-native-google-analytics.md

@@ -25,7 +25,5 @@
    const analyticsMiddleware = createMiddleware(eventsMap, target);
    ```
 
-
-
 ### Example
   * [Redux Beacon: React Native Google Analytics Example](https://github.com/johannalee/react-native-redux-example)

Diff for: docs/targets/segment.md

@@ -42,10 +42,8 @@ import {
 To use it, just specify the Segment.io event in your event definition:
 
 ```js
-const pageView = {
-  eventFields: (action): PageView => ({
-    hitType: 'pageview',
-    page: action.payload,
-  }),
-};
+const pageView = (action): PageView => ({
+  hitType: 'pageview',
+  page: action.payload,
+});
 ```