Merge pull request #156 from prometheus-community/repo_sync_codemirror

Synchronize codemirror from prometheus/prometheus

README.md

@@ -1,13 +1,21 @@
 CodeMirror-promql
 =================
-[![CircleCI](https://circleci.com/gh/prometheus-community/codemirror-promql.svg?style=shield)](https://circleci.com/gh/prometheus-community/codemirror-promql) [![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](./LICENSE)
+[![CircleCI](https://circleci.com/gh/prometheus-community/codemirror-promql.svg?style=shield)](https://circleci.com/gh/prometheus-community/codemirror-promql) [![GitHub license](https://img.shields.io/badge/license-Apache-blue.svg)](./LICENSE)
 [![NPM version](https://img.shields.io/npm/v/codemirror-promql.svg)](https://www.npmjs.org/package/codemirror-promql) [![codecov](https://codecov.io/gh/prometheus-community/codemirror-promql/branch/master/graph/badge.svg?token=1OSVPBDKZC)](https://codecov.io/gh/prometheus-community/codemirror-promql)
 
 ## Overview
 
 This project provides a mode for [CodeMirror Next](https://codemirror.net/6) that handles syntax highlighting, linting
 and autocompletion for PromQL ([Prometheus Query Language](https://prometheus.io/docs/introduction/overview/)).
 
+![preview](https://user-images.githubusercontent.com/4548045/95660829-d5e4b680-0b2a-11eb-9ecb-41dca6396273.gif)
+
+## Where does it come from?
+
+The authoritative copy of this code lives in `prometheus/prometheus` and is synced to 
+`prometheus-community/codemirror-promql` on a regular basis by a bot. Please contribute any code changes to the code 
+in https://github.com/prometheus/prometheus/tree/main/web/ui/module/codemirror-promql.
+
 ### Installation
 
 This mode is available as a npm package:
@@ -38,15 +46,6 @@ npm install --save @codemirror/autocomplete @codemirror/highlight @codemirror/la
 npm install --save @codemirror/basic-setup
 ```
 
-### Playground
-
-[Here](https://codemirror-promql.netlify.app/) you have a playground available that is deployed from the latest commit
-available on the `master` branch.
-
-Here is a short preview of it looks like currently:
-
-![preview](https://user-images.githubusercontent.com/4548045/95660829-d5e4b680-0b2a-11eb-9ecb-41dca6396273.gif)
-
 ## Usage
 
 As the setup of the PromQL language can a bit tricky in CMN, this lib provides a class `PromQLExtension`
@@ -245,12 +244,6 @@ Note: In case this parameter is provided, then the rest of the configuration is
 * [ReactJS example](https://github.com/prometheus/prometheus/blob/431ea75a11ca165dad9dd5d629b3cf975f4c186b/web/ui/react-app/src/pages/graph/CMExpressionInput.tsx)
 * [Angular example](https://github.com/perses/perses/blob/28b3bdac88b0ed7a4602f9c91106442eafcb6c34/internal/api/front/perses/src/app/project/prometheusrule/promql-editor/promql-editor.component.ts)
 
-## Contributions
-
-Any contribution or suggestion would be really appreciated. Feel free
-to [file an issue](https://github.com/prometheus-community/codemirror-promql/issues)
-or [send a pull request](https://github.com/prometheus-community/codemirror-promql/pulls).
-
 ## License
 
-[MIT](./LICENSE)
+Apache License 2.0, see [LICENSE](https://github.com/prometheus-community/codemirror-promql/blob/master/LICENSE).