docs(): changed old cli commands (#1644)

Im also removed some V2 tags from Ionic and Angular

src/@ionic-native/plugins/deeplinks/index.ts

@@ -49,7 +49,7 @@ export interface DeeplinkMatch {
  *    });
  * ```
  *
- * Alternatively, if you're using Ionic 2, there's a convenience method that takes a reference to a `NavController` and handles
+ * Alternatively, if you're using Ionic, there's a convenience method that takes a reference to a `NavController` and handles
  * the actual navigation for you:
  *
  * ```typescript
@@ -67,7 +67,7 @@ export interface DeeplinkMatch {
  *   });
  * ```
  *
- * See the [Ionic 2 Deeplinks Demo](https://github.com/ionic-team/ionic2-deeplinks-demo/blob/master/app/app.ts) for an example of how to
+ * See the [Ionic Deeplinks Demo](https://github.com/ionic-team/ionic2-deeplinks-demo/blob/master/app/app.ts) for an example of how to
  * retrieve the `NavController` reference at runtime.
  *
  * @interfaces
@@ -103,7 +103,7 @@ export class Deeplinks extends IonicNativePlugin {
   /**
    *
    * This is a convenience version of `route` that takes a reference to a NavController
-   * from Ionic 2, or a custom class that conforms to this protocol:
+   * from Ionic, or a custom class that conforms to this protocol:
    *
    * NavController.push = function(View, Params){}
    *

src/@ionic-native/plugins/facebook/index.ts

@@ -43,7 +43,7 @@ export interface FacebookLoginResponse {
  * Then type in the following command in your Terminal, where APP_ID and APP_NAME are the values from the Facebook Developer portal.
  *
  * ```bash
- *  ionic plugin add cordova-plugin-facebook4 --variable APP_ID="123456789" --variable APP_NAME="myApplication"
+ *  ionic cordova plugin add cordova-plugin-facebook4 --variable APP_ID="123456789" --variable APP_NAME="myApplication"
  * ```
  *
  * After, you'll need to add the native platforms you'll be using to your app in the Facebook Developer portal under your app's Settings:

src/@ionic-native/plugins/image-resizer/index.ts

@@ -43,7 +43,7 @@ export interface ImageResizerOptions {
  * Cordova Plugin For Image Resize
  *
  * Requires plugin `info.protonet.imageresizer` - use the Ionic CLI and type in the following command:
- * `ionic plugin add https://github.com/protonet/cordova-plugin-image-resizer.git`
+ * `ionic cordova plugin add https://github.com/protonet/cordova-plugin-image-resizer.git`
  *
  * For more info, please see the https://github.com/protonet/cordova-plugin-image-resizer
  *