docs: update READMEs

Author: abichinger

README.md

@@ -1,10 +1,8 @@
 # Vue.js Cron
 
-generate cron expressions using Vue.js
+**generate cron expressions using Vue.js**
 
-![Vue.js Cron Hero](./vue-js-cron-hero.png)
-
-This component is inspired by [react-js-cron](https://github.com/xrutayisire/react-js-cron) and [jqcron](https://github.com/arnapou/jqcron)
+![Vue.js Cron Hero](https://raw.githubusercontent.com/abichinger/vue-js-cron/main/assets/cron-light-hero.png)
 
 # Getting Started
 
@@ -41,4 +39,8 @@ yarn test
 ## Build
 ```
 yarn build
-```
+```
+
+## Attribution
+
+This component is inspired by [react-js-cron](https://github.com/xrutayisire/react-js-cron) and [jqcron](https://github.com/arnapou/jqcron)

assets/cron-light-hero.png

@@ -1,9 +1,13 @@
 # Vue.js Cron Core
 
-A renderless Vue.js cron editor.
+**Renderless Vue.js cron editor**
 
-This component is inspired by [react-js-cron](https://github.com/xrutayisire/react-js-cron) and [jqcron](https://github.com/arnapou/jqcron)
+![Vue.js Cron Core Hero](https://raw.githubusercontent.com/abichinger/vue-js-cron/main/assets/cron-light-hero.png)
 
 ## Usage
 
-**Demo** and **getting started guide** at [https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-renderless](https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-renderless)
+**Demo** and **getting started guide** at [https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-renderless](https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-renderless)
+
+## Attribution
+
+This component is inspired by [react-js-cron](https://github.com/xrutayisire/react-js-cron) and [jqcron](https://github.com/arnapou/jqcron)

assets/cron-vuetify-hero.png

@@ -1,9 +1,13 @@
-# Vue.js Cron Vuetify
+# Vue.js Cron Light
 
-lightweight vue.js cron editor
+**lightweight vue.js cron editor**
 
-This component is inspired by [react-js-cron](https://github.com/xrutayisire/react-js-cron) and [jqcron](https://github.com/arnapou/jqcron)
+![Vue.js Cron Core Hero](https://raw.githubusercontent.com/abichinger/vue-js-cron/main/assets/cron-light-hero.png)
 
 ## Usage
 
-**Demo** and **getting started guide** at [https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-cronlight](https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-vuetify)
+**Demo** and **getting started guide** at [https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-cronlight](https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-vuetify)
+
+## Attribution
+
+This component is inspired by [react-js-cron](https://github.com/xrutayisire/react-js-cron) and [jqcron](https://github.com/arnapou/jqcron)

core/README.md

@@ -1,9 +1,13 @@
 # Vue.js Cron Vuetify
 
-Cron editor for vuetify
+**Cron editor for vuetify**
 
-This component is inspired by [react-js-cron](https://github.com/xrutayisire/react-js-cron) and [jqcron](https://github.com/arnapou/jqcron)
+![Vue.js Cron Vuetify Hero](https://raw.githubusercontent.com/abichinger/vue-js-cron/main/assets/cron-vuetify-hero.png)
 
 ## Usage
 
-**Demo** and **getting started guide** at [https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-cronvuetify](https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-vuetify)
+**Demo** and **getting started guide** at [https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-cronvuetify](https://abichinger.github.io/vue-js-cron/guide/getting-started.html#quick-start-vuetify)
+
+## Attribution
+
+This component is inspired by [react-js-cron](https://github.com/xrutayisire/react-js-cron) and [jqcron](https://github.com/arnapou/jqcron)