Assorted Markdown tweaks (#2750)

README.md

@@ -1,5 +1,4 @@
-Introduction
-============
+# Introduction
 
 [![npm version](https://img.shields.io/npm/v/admin-lte/latest.svg)](https://www.npmjs.com/package/admin-lte)
 [![Packagist](https://img.shields.io/packagist/v/almasaeed2010/adminlte.svg)](https://packagist.org/packages/almasaeed2010/adminlte)
@@ -10,56 +9,61 @@ Highly customizable and easy to use. Fits many screen resolutions from small mob
 
 **Preview on [AdminLTE.io](https://adminlte.io/themes/v3)**
 
-Looking for Premium Templates?
-------------------------------
+## Looking for Premium Templates?
+
 AdminLTE.io just opened a new premium templates page. Hand picked to ensure the best quality and the most affordable
-prices. Visit https://adminlte.io/premium for more information.
+prices. Visit <https://adminlte.io/premium> for more information.
 
 !["AdminLTE Presentation"](https://adminlte.io/AdminLTE3.png "AdminLTE Presentation")
 
 **AdminLTE** has been carefully coded with clear comments in all of its JS, SCSS and HTML files.
 SCSS has been used to increase code customizability.
 
-Installation
-------------
+## Installation
+
 There are multiple ways to install AdminLTE.
 
-#### Download:
+### Download:
 
 Download from [GitHub releases](https://github.com/ColorlibHQ/AdminLTE/releases).
 
-#### Using The Command Line:
+### 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 10 or higher._
+
+- **Via npm**
 
-__Via NPM__
     ```bash
     npm install admin-lte@^3.0 --save
     ```
 
-__Via Yarn__
+- **Via Yarn**
+
     ```bash
     yarn add admin-lte@^3.0
     ```
 
-__Via Composer__
+- **Via Composer**
+
     ```bash
     composer require "almasaeed2010/adminlte=~3.0"
     ```
 
-__Via Git__
-- Clone to your machine
-```
+- **Via Git**
+
+    Clone to your machine
+
+    ```bash
     git clone https://github.com/ColorlibHQ/AdminLTE.git
     ```
 
-Documentation
--------------
+## Documentation
+
 Visit the [online documentation](https://adminlte.io/docs/3.0/) for the most
 updated guide. Information will be added on a weekly basis.
 
-Browser Support
----------------
+## Browser Support
+
 - IE 10+
 - Firefox (latest)
 - Chrome (latest)
@@ -67,55 +71,58 @@ Browser Support
 - Opera (latest)
 - Microsoft Edge (latest)
 
-Contribution
-------------
-Contribution are always **welcome and recommended**! Here is how:
+## Contributions
+
+Contributions are always **welcome and recommended**! Here is how:
 
 - Fork the repository ([here is the guide](https://help.github.com/articles/fork-a-repo/)).
-- Clone to your machine ```git clone https://github.com/YOUR_USERNAME/AdminLTE.git```
+- Clone to your machine
+
+    ```bash
+    git clone https://github.com/YOUR_USERNAME/AdminLTE.git
+    ```
+
 - Create a new branch
 - Make your changes
 - Create a pull request
 
-#### Compile dist files
-To compile the dist files you need nodejs/npm, clone/download the repo then:
+### Compile dist files
+
+To compile the dist files you need Node.js/npm, clone/download the repo then:
 
 1. `npm install` (install npm deps)
 2. _Optional:_ `npm run dev` (developer mode, autocompile with browsersync support for live demo)
 3. `npm run production` (compile css/js files)
 
-#### Contribution Requirements:
+### Contribution Requirements:
+
 - When you contribute, you agree to give a non-exclusive license to AdminLTE.io to use that contribution in any context as we (AdminLTE.io) see appropriate.
 - If you use content provided by another party, it must be appropriately licensed using an [open source](https://opensource.org/licenses) license.
 - Contributions are only accepted through GitHub pull requests.
 - Finally, contributed code must work in all supported browsers (see above for browser support).
 
-License
--------
-AdminLTE is an open source project by [AdminLTE.io](https://adminlte.io) that is licensed under [MIT](https://opensource.org/licenses/MIT). AdminLTE.io
-reserves the right to change the license of future releases.
+## License
+
+AdminLTE is an open source project by [AdminLTE.io](https://adminlte.io) that is licensed under [MIT](https://opensource.org/licenses/MIT).
+AdminLTE.io reserves the right to change the license of future releases.
+
+## Latest Release
 
-Latest Release
----------------
 - [AdminLTE 3](https://github.com/ColorlibHQ/AdminLTE/releases/latest)
 
-Legacy Releases
----------------
+## Legacy Releases
+
 - [AdminLTE 2](https://github.com/ColorlibHQ/AdminLTE/releases/tag/v2.4.18)
 - [AdminLTE 1](https://github.com/ColorlibHQ/AdminLTE/releases/tag/1.3.1)
 
-Change log
-----------
+## Changelog
+
 Visit the [releases](https://github.com/ColorlibHQ/AdminLTE/releases) page to view the changelog
 
-Image Credits
--------------
-[Pixeden](http://www.pixeden.com/psd-web-elements/flat-responsive-showcase-psd)
+## Image Credits
 
-[Graphicsfuel](https://www.graphicsfuel.com/2013/02/13-high-resolution-blur-backgrounds/)
-
-[Pickaface](https://pickaface.net/)
-
-[Unsplash](https://unsplash.com/)
-
-[Uifaces](http://uifaces.com/)
+- [Pixeden](http://www.pixeden.com/psd-web-elements/flat-responsive-showcase-psd)
+- [Graphicsfuel](https://www.graphicsfuel.com/2013/02/13-high-resolution-blur-backgrounds/)
+- [Pickaface](https://pickaface.net/)
+- [Unsplash](https://unsplash.com/)
+- [Uifaces](http://uifaces.com/)