update node version info in docs & contribution guides

.github/CONTRIBUTING.md

@@ -17,7 +17,7 @@ Contributions are always **welcome and recommended**! Here is how for beginner's
     ```
     * Create a new branch
 3. Compile dist files (Development) :
-    * To compile the dist files you need Node.js 10 or higher/npm (node package manager)
+    * To compile the dist files you need Node.js 14 or higher/npm (node package manager)
     * Delete ./package-lock.json file
     * `npm install` (install npm deps)
     * `npm run dev` (developer mode, autocompile with browsersync support for live demo)

README.md

@@ -40,7 +40,7 @@ _**Important Note**: You needed to add separately cdn links for plugins in your
 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/admin-lte@3.1/dist/css/adminlte.min.css">
 ```
 ### Using The Command Line:
-_**Important Note**: To install it via npm/Yarn, you need at least Node.js 10 or higher._
+_**Important Note**: To install it via npm/Yarn, you need at least Node.js 14 or higher._
 #### Via npm
 ```bash
 npm install admin-lte@^3.1 --save
@@ -68,7 +68,7 @@ _**Important Note**: You needed to add separately cdn links for plugins in your
 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/admin-lte@3.1.0/dist/css/adminlte.min.css">
 ```
 ### Using The Command Line:
-_**Important Note**: To install it via npm/Yarn, you need at least Node.js 10 or higher._
+_**Important Note**: To install it via npm/Yarn, you need at least Node.js 14 or higher._
 #### Via npm
 ```bash
 npm install admin-lte@^3.1.0 --save

docs/how-to-contribute.md

@@ -21,7 +21,7 @@ Contributions are always **welcome and recommended**! Here is how for beginner's
     ```
     * Create a new branch
 3. Compile dist files (Development) :
-    * To compile the dist files you need Node.js 10 or higher/npm (node package manager)
+    * To compile the dist files you need Node.js 14 or higher/npm (node package manager)
     * Delete ./package-lock.json file
     * `npm install` (install npm deps)
     * `npm run dev` (developer mode, autocompile with browsersync support for live demo)