move to ESM (#102)

* Move to ESM

* Remove unused script

* Updates

Author: LitoMore

.github/workflows/ci.yml

@@ -14,20 +14,14 @@ jobs:
     strategy:
       matrix:
         node-version:
-          - 7
-          - 8
-          - 9
-          - 10
-          - 11
-          - 13
-          - 14
-          - 15
+          - 20
+          - 18
+          - 16
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
+      uses: actions/setup-node@v3
       with:
         node-version: ${{ matrix.node-version }}
     - run: npm install
-    - run: npm run pretest
     - run: npm test

README.md

@@ -17,7 +17,7 @@ const ansiChannels = convert.ansi16.channels; // 1
 # Install
 
 ```sh
-$ npm install color-convert
+npm install color-convert
 ```
 
 # API
@@ -117,7 +117,7 @@ channel | full-scale value
 ### gray
 channel | full-scale value
 ---|---
-g | 100
+gray | 100
 
 # Contribute