build: add build and test status badge and minor fixes

README.md

@@ -1,9 +1,9 @@
 Alerta Web UI 7.0
 =================
 
-Version 7.0 of the Alerta web UI is a [VueJS](https://vuejs.org/) web app.
+[![Actions Status](https://github.com/alerta/alerta-webui/workflows/CI%20Tests/badge.svg)](https://github.com/alerta/alerta-webui/actions) [![Slack chat](https://img.shields.io/badge/chat-on%20slack-blue?logo=slack)](https://slack.alerta.dev)
 
-[![Slack chat](https://img.shields.io/badge/chat-on%20slack-blue?logo=slack)](https://slack.alerta.dev)
+Version 7.0 of the Alerta web UI is a [VueJS](https://vuejs.org/) web app.
 
 ![webui](/docs/images/alerta-webui-v7.png?raw=true&v=1)
 
@@ -32,7 +32,8 @@ Environment variables for some settings can be used at build time:
     $ npm install
     $ npm run build
 
-or place a `config.json` configuration file in the `dist` directory:
+or place a `config.json` configuration file in the `dist` directory
+for run time configuration:
 
     {
         "endpoint": "https://alerta-api.example.com"
@@ -92,7 +93,7 @@ history mode.
 ### Cross-origin Errors (CORS) ###
 
 All modern browsers restrict access of a web app running at one domain to
-resources at different origin (domain). This mechanism is known as [CORS][3].
+resources at a different origin (domain). This mechanism is known as [CORS][3].
 
 [3]: https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS
 
@@ -168,7 +169,7 @@ License
 -------
 
     Alerta monitoring system and console
-    Copyright 2019-2020 Nick Satterly
+    Copyright 2019-2021 Nick Satterly
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.