up: upgrade node to 20.5.0

Author: isuke

.github/workflows/main.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x]
+        node-version: [14.x, 16.x, 18.x, 20.x]
 
     steps:
     - uses: actions/checkout@v3
@@ -25,7 +25,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-node@v3
       with:
-        node-version: 18.x
+        node-version: 20.x
         cache: 'npm'
     - run: npm install
     - run: npm run lint

.node-version

@@ -1 +1 @@
-16.18.0
+20.5.0

README.md

@@ -4,10 +4,11 @@
 
 Give consistency to your project's git logs.
 
-[!["node v14"](https://img.shields.io/badge/node-v14-026e00.svg)](https://nodejs.org/ja/download/releases/)
-[!["node v16"](https://img.shields.io/badge/node-v16-026e00.svg)](https://nodejs.org/ja/download/releases/)
-[!["node v17"](https://img.shields.io/badge/node-v17-026e00.svg)](https://nodejs.org/ja/download/releases/)
-[!["node v18"](https://img.shields.io/badge/node-v18-026e00.svg)](https://nodejs.org/ja/download/releases/)
+[!["node v14"](https://img.shields.io/badge/node-v14-026e00.svg)](https://nodejs.org/en/download/releases)
+[!["node v16"](https://img.shields.io/badge/node-v16-026e00.svg)](https://nodejs.org/en/download/releases)
+[!["node v17"](https://img.shields.io/badge/node-v17-026e00.svg)](https://nodejs.org/en/download/releases)
+[!["node v18"](https://img.shields.io/badge/node-v18-026e00.svg)](https://nodejs.org/en/download/releases)
+[!["node v20"](https://img.shields.io/badge/node-v20-026e00.svg)](https://nodejs.org/en/download/releases)
 
 ## Samples