Add dashboard GIF to main README, add blurb to all READMEs

Author: ruohola

README.md

@@ -6,6 +6,10 @@
 [![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg)](https://github.com/prettier/prettier)
 [![license](https://img.shields.io/badge/license-MIT-green)](https://github.com/apilytics/apilytics-node/blob/master/LICENSE)
 
+Apilytics is a service that lets you analyze operational, performance and security metrics from your APIs without infrastructure-level logging.
+
+<img src="https://www.apilytics.io/mock-ups/time-frame.gif" alt="Apilytics dashboard animation" width="600" height="300" />
+
 ## Installation
 
 1. Sign up and get your API key from https://apilytics.io - we offer a completely free trial with no credit card required!

packages/core/README.md

@@ -8,6 +8,8 @@
 [![node versions](https://img.shields.io/node/v/@apilytics/core)](#what-nodejs-versions-does-the-package-work-with)
 [![license](https://img.shields.io/npm/l/@apilytics/core)](https://github.com/apilytics/apilytics-node/blob/master/packages/core/LICENSE)
 
+Apilytics is a service that lets you analyze operational, performance and security metrics from your APIs without infrastructure-level logging.
+
 Make sure to check out our out-of-the-box middleware packages first:
 
 - [**Express**](../express/README.md#installation)

packages/express/README.md

@@ -8,6 +8,8 @@
 [![node versions](https://img.shields.io/node/v/@apilytics/express)](#what-nodejs-versions-does-the-package-work-with)
 [![license](https://img.shields.io/npm/l/@apilytics/express)](https://github.com/apilytics/apilytics-node/blob/master/packages/express/LICENSE)
 
+Apilytics is a service that lets you analyze operational, performance and security metrics from your APIs without infrastructure-level logging.
+
 ## Installation
 
 1. Sign up and get your API key from https://apilytics.io - we offer a completely free trial with no credit card required!

packages/next/README.md

@@ -8,6 +8,8 @@
 [![node versions](https://img.shields.io/node/v/@apilytics/next)](#what-nodejs-versions-does-the-package-work-with)
 [![license](https://img.shields.io/npm/l/@apilytics/next)](https://github.com/apilytics/apilytics-node/blob/master/packages/next/LICENSE)
 
+Apilytics is a service that lets you analyze operational, performance and security metrics from your APIs without infrastructure-level logging.
+
 ## Installation
 
 1. Sign up and get your API key from https://apilytics.io - we offer a completely free trial with no credit card required!