Switching node version to version 16

.github/workflows/build.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x, 16.x]
+        node-version: [16.x]
     steps:
     - uses: actions/checkout@v2.3.4
 

docs/README.md

@@ -181,7 +181,7 @@ Latest Version: [https://unpkg.com/browse/mermaid@8.8.0/](https://unpkg.com/brow
 ## Deploying Mermaid
 To Deploy Mermaid:
 
-1. You will need to install node v10 or 12, which would have npm
+1. You will need to install node v16, which would have npm
 2. Download yarn using npm
 3. Enter the following command: `yarn add mermaid`
 4. You can then add mermaid as a dev dependency using this command:

docs/n00b-gettingStarted.md

@@ -164,7 +164,7 @@ In this example mermaid.js is referenced in `src` as a separate JavaScript file,
 ---
 ## 4. Adding Mermaid as a dependency.
 
-1. install node v10 or 12, which would have npm
+1. install node v16, which would have npm
 
 2. download yarn using npm by entering the command below:
     npm install -g yarn

docs/usage.md

@@ -23,7 +23,7 @@ We have compiled some Video [Tutorials](./Tutorials.md) on how to use the mermai
 **Using the npm package**
 
 ```
-1.You will need to install node v10 or 12, which would have npm.
+1.You will need to install node v16, which would have npm.
 
 2. download yarn using npm.