Upgrade to use node 16

.github/workflows/ci.yml

@@ -22,15 +22,14 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: '14'
+          node-version: '16'
       - name: Install Graphviz
         uses: tlylt/install-graphviz@v1
       - name: Install Java
         uses: actions/setup-java@v3
         with:
           java-version: '11'
           distribution: 'temurin'
-      - run: npm i -g [email protected]
       - run: npm run setup
       - run: npm run test
   deploy-docs:
@@ -45,15 +44,14 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: '14'
+          node-version: '16'
       - name: Install Graphviz
         uses: tlylt/install-graphviz@v1
       - name: Install Java
         uses: actions/setup-java@v3
         with:
           java-version: '11'
           distribution: 'temurin'
-      - run: npm i -g [email protected]
       - run: npm run setup
       - name: Deploy DG on any commit to master, to markbind.org/devdocs
         run: >-

docs/_markbind/variables.md

@@ -11,8 +11,8 @@
 <variable name="icon_info">:fas-info-circle:</variable>
 <variable name="icon_ticked">:far-check-square:</variable>
 
-<variable name="node_version_number">14</variable>
-<variable name="node_dev_version_number">14.17.0</variable>
+<variable name="node_version_number">16</variable>
+<variable name="node_dev_version_number">16.19.1</variable>
 <variable name="node_version"><tooltip content="MarkBind aims to support up to the last maintenance lts release as outlined [here](https://nodejs.org/en/about/releases/)">v{{ node_version_number }}</tooltip></variable>
 <variable name="node_dev_version"><tooltip content="MarkBind aims to support up to the last maintenance lts release as outlined [here](https://nodejs.org/en/about/releases/)">v{{ node_dev_version_number }}</tooltip></variable>
 <variable name="link_live_preview">[live preview](glossary.html#live-preview)</variable>

docs/devGuide/development/settingUp.md

@@ -16,7 +16,7 @@ This page explains how to set up your development environment to start contribut
 ## Prerequisites
 
 1. **Node.js** ({{ node_dev_version }} or higher) with<br>
-   **npm** <tooltip content="You may need to upgrade the default npm that is included with Node.js v14 installation">v7</tooltip> or higher
+   **npm** <tooltip content="You may need to upgrade the default npm that is included with Node.js v16 installation">v8</tooltip> or higher
 
 1. **Java** 8 or later, and<br>
    **Graphviz** v2.38 or later<br>

docs/userGuide/deployingTheSite.md

@@ -108,7 +108,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: '14'
+          node-version: '16'
       - run: npm i -g markbind-cli
       - run: markbind deploy --ci
 ```
@@ -307,8 +307,8 @@ Commit and push `appveyor.yml` to your GitHub repository. Thereafter, AppVeyor C
         steps:
           - checkout
           - node/install:
-              node-version: "14"
-              npm-version: "7"
+              node-version: "16"
+              npm-version: "8"
               install-yarn: false
           - run: node --version
           - run: npm i -g markbind-cli
@@ -427,7 +427,7 @@ jobs:
       - name: Install Node
         uses: actions/setup-node@v3
         with:
-          node-version: 14
+          node-version: 16
       - name: Build MarkBind website
         run: |
           npm install -g markbind-cli
@@ -497,7 +497,7 @@ jobs:
       - name: Install Node
         uses: actions/setup-node@v3
         with:
-          node-version: 14
+          node-version: 16
       - name: Build PR preview url
         id: pr-url
         run: |