docs: add github actions ci, migrate to main branch, discussions chat

Author: ChristianMurphy

.github/workflows/ci.yml

@@ -1,9 +1,9 @@
 name: CI
 on:
   push:
-    branches: [master]
+    branches: [main]
   pull_request:
-    branches: [master]
+    branches: [main]
 jobs:
   build-and-test:
     name: '${{ matrix.platform }}: node.js ${{ matrix.nodejs-version }}'
@@ -14,9 +14,9 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout
-        uses: actions/checkout@master
+        uses: actions/checkout@v2
       - name: Set up Node.js
-        uses: actions/setup-node@master
+        uses: actions/setup-node@v2
         with:
           version: ${{ matrix.nodejs-version }}
       - name: Build and test

.travis.yml

@@ -1,17 +1,16 @@
 # ![Redot](https://raw.githubusercontent.com/redotjs/redot/aba51ee/logo.svg?sanitize=true)
 
-[![Travis CI Status](https://travis-ci.org/redotjs/redot.svg?branch=master)](https://travis-ci.org/redotjs/redot)
-[![GitHub Actions Status](https://github.com/redotjs/redot/workflows/CI/badge.svg)](https://github.com/redotjs/redot/actions)
-[![Chat](https://img.shields.io/badge/join%20the%20community-on%20spectrum-7b16ff.svg)](https://spectrum.chat/unified/redot)
+[![Build Status](https://github.com/redotjs/redot/workflows/CI/badge.svg)](https://github.com/redotjs/redot/actions)
+[![Chat](https://img.shields.io/badge/chat-discussions-success.svg)](https://github.com/redotjs/redot/discussions)
 
 **redot** is an ecosystem of plugins for processing graphviz dot files.
 It’s not another graphviz compiler. It can generate
 and reformat graphviz too.
 
 It’s built on [unified](https://github.com/unifiedjs/unified), make sure to read it and its [website](https://unifiedjs.github.io) too.
 
-- [`redot`](https://github.com/redotjs/redot/tree/master/packages/redot) — Programmatic interface
-- [`redot-cli`](https://github.com/redotjs/redot/tree/master/packages/redot-cli) — Command-line interface
+- [`redot`](https://github.com/redotjs/redot/tree/main/packages/redot) — Programmatic interface
+- [`redot-cli`](https://github.com/redotjs/redot/tree/z/packages/redot-cli) — Command-line interface
 
 ## Contribute
 

README.md

@@ -1,8 +1,8 @@
 # redot-cli
 
 [![NPM Version](https://img.shields.io/npm/v/redot-cli.svg)](https://www.npmjs.com/package/redot-cli)
-[![Build Status](https://travis-ci.org/redotjs/redot.svg?branch=master)](https://travis-ci.org/redotjs/redot)
-[![Chat](https://img.shields.io/gitter/room/redotjs/Lobby.svg)](https://gitter.im/redotjs/Lobby)
+[![Build Status](https://github.com/redotjs/redot/workflows/CI/badge.svg)](https://github.com/redotjs/redot/actions)
+[![Chat](https://img.shields.io/badge/chat-discussions-success.svg)](https://github.com/redotjs/redot/discussions)
 
 ## Installation
 
@@ -17,10 +17,10 @@ npm install redot-cli
 Command-line interface for [**redot**](https://github.com/redotjs/redot).
 
 * Loads `redot-` plugins
-* Ignores paths found in [`.redotignore` files](https://github.com/unifiedjs/unified-engine/blob/master/doc/ignore.md)
-* Loads configuration from [`.redot`, `.redot.js` files](https://github.com/unifiedjs/unified-engine/blob/master/doc/configure.md)
+* Ignores paths found in [`.redotignore` files](https://github.com/unifiedjs/unified-engine/blob/main/doc/ignore.md)
+* Loads configuration from [`.redot`, `.redot.js` files](https://github.com/unifiedjs/unified-engine/blob/main/doc/configure.md)
 * Uses configuration from [`redotConfig` fields in `package.json`
-  files](https://github.com/unifiedjs/unified-engine/blob/master/doc/configure.md)
+  files](https://github.com/unifiedjs/unified-engine/blob/main/doc/configure.md)
 
 ## Usage
 

packages/redot-cli/README.md

@@ -1,8 +1,8 @@
 # redot-parse
 
 [![NPM Version](https://img.shields.io/npm/v/redot-parse.svg)](https://www.npmjs.com/package/redot-parse)
-[![Build Status](https://travis-ci.org/redotjs/redot.svg?branch=master)](https://travis-ci.org/redotjs/redot)
-[![Chat](https://img.shields.io/gitter/room/redotjs/Lobby.svg)](https://gitter.im/redotjs/Lobby)
+[![Build Status](https://github.com/redotjs/redot/workflows/CI/badge.svg)](https://github.com/redotjs/redot/actions)
+[![Chat](https://img.shields.io/badge/chat-discussions-success.svg)](https://github.com/redotjs/redot/discussions)
 
 [Parser](https://github.com/unifiedjs/unified#processorparser) for [**unified**](https://github.com/unifiedjs/unified). Parses graphviz to an
 [**dotast**](https://github.com/redotjs/dotast) syntax tree. Used in the [**redot**

packages/redot-parse/README.md

@@ -1,8 +1,8 @@
 # redot-stringify
 
 [![NPM Version](https://img.shields.io/npm/v/redot-stringify.svg)](https://www.npmjs.com/package/redot-stringify)
-[![Build Status](https://travis-ci.org/redotjs/redot.svg?branch=master)](https://travis-ci.org/redotjs/redot)
-[![Chat](https://img.shields.io/gitter/room/redotjs/Lobby.svg)](https://gitter.im/redotjs/Lobby)
+[![Build Status](https://github.com/redotjs/redot/workflows/CI/badge.svg)](https://github.com/redotjs/redot/actions)
+[![Chat](https://img.shields.io/badge/chat-discussions-success.svg)](https://github.com/redotjs/redot/discussions)
 
 [Compiler](https://github.com/unifiedjs/unified#processorcompiler) for [**unified**](https://github.com/unifiedjs/unified). Stringifies an
 [**DOTAST**](https://github.com/redotjs/dotast) syntax tree to graphviz. Used in the [**redot**

packages/redot-stringify/README.md

@@ -1,8 +1,8 @@
 # redot
 
 [![NPM Version](https://img.shields.io/npm/v/redot.svg)](https://www.npmjs.com/package/redot)
-[![Build Status](https://travis-ci.org/redotjs/redot.svg?branch=master)](https://travis-ci.org/redotjs/redot)
-[![Chat](https://img.shields.io/gitter/room/redotjs/Lobby.svg)](https://gitter.im/redotjs/Lobby)
+[![Build Status](https://github.com/redotjs/redot/workflows/CI/badge.svg)](https://github.com/redotjs/redot/actions)
+[![Chat](https://img.shields.io/badge/chat-discussions-success.svg)](https://github.com/redotjs/redot/discussions)
 
 ## Installation