update README, version number

Author: shwilliam

README.md

@@ -2,6 +2,8 @@
 
 > Vue component that emits an event when scrolled into view
 
+[![vue-visibility-trigger demo](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/qkyolorn6w?module=%2Fsrc%2FApp.vue)
+
 ## Installation
 
 Install the package from npm by running
@@ -13,7 +15,7 @@ $ yarn add vue-visibility-trigger
 or
 
 ```
-$ npm install --save vue-visibility-trigger
+$ npm i vue-visibility-trigger
 ```
 
 ## Usage
@@ -23,7 +25,7 @@ Import, register and place the component in your Vue app. Attach a function to r
 ```
 <template>
   ...
-    <vue-visibility-trigger @scrolledIn="doSomething" />
+    <VueVisibilityTrigger @scrolledIn="doSomething" />
   ...
 </template>
 
@@ -33,10 +35,12 @@ import VueVisibilityTrigger from 'vue-visibility-trigger'
 export default {
   ...
   components: {
-    "vue-visibility-trigger": VueVisibilityTrigger
+    VueVisibilityTrigger
   }
 };
 </script>
 ```
 
-[![vue-visibility-trigger demo](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/qkyolorn6w?module=%2Fsrc%2FApp.vue)
+## Dev
+
+Running dev and example scripts require @vue/cli and @vue/cli-service-global to be installed. Install globally by running `npm i --g @vue/cli @vue/cli-service-global` or `yarn add global vue/cli @vue/cli-service-global`