Use Bootstrap 4.4 consistently. (#2824)

README.md

@@ -4,7 +4,7 @@
 [![Packagist](https://img.shields.io/packagist/v/almasaeed2010/adminlte.svg)](https://packagist.org/packages/almasaeed2010/adminlte)
 [![CDNJS](https://img.shields.io/cdnjs/v/admin-lte.svg)](https://cdnjs.com/libraries/admin-lte)
 
-**AdminLTE** is a fully responsive administration template. Based on **[Bootstrap 4.4](https://getbootstrap.com)** framework and also the JS/jQuery plugin.
+**AdminLTE** is a fully responsive administration template. Based on **[Bootstrap 4.4](https://getbootstrap.com/)** framework and also the JS/jQuery plugin.
 Highly customizable and easy to use. Fits many screen resolutions from small mobile devices to large desktops.
 
 **Preview on [AdminLTE.io](https://adminlte.io/themes/v3)**

docs/browser-support.md

@@ -8,7 +8,7 @@ AdminLTE comes with the same browser support as Bootstrap 4.
 > ##### Excerpt from Bootstrap's official Documentation!
 > Bootstrap supports the __latest, stable releases__ of all major browsers and platforms. On Windows, __we support Internet Explorer 10-11 / Microsoft Edge__.
 >
-> For more details [look here](https://getbootstrap.com/docs/4.3/getting-started/browsers-devices/#supported-browsers).
+> For more details [look here](https://getbootstrap.com/docs/4.4/getting-started/browsers-devices/#supported-browsers).
 
 You can find our supported range of browsers and their versions in [our .browserslistrc file](https://github.com/ColorlibHQ/AdminLTE/blob/v3-dev/.browserslistrc):
 ```

docs/dependencies.md

@@ -8,7 +8,7 @@ title: Dependencies & Plugins
 AdminLTE depends on two main frameworks. The downloadable package contains both of these libraries, so you don't have to manually download them.
 {: .lead}
 
-- [Bootstrap 4](https://getbootstrap.com)
+- [Bootstrap 4](https://getbootstrap.com/)
 - [jQuery 3.3.1+](https://jquery.com/)
 - [Popper.js 1.14.7+](https://popper.js.org/)
 - [All other plugins are listed below](#plugins)

docs/upgrade-guide.md

@@ -5,7 +5,7 @@ title: Upgrade Guide
 
 #### Migration from v2.4.x
 
-The first step to migrate AdminLTE v2.4.x to v3.0 is upgrade the Bootstrap 3 base code to Bootstrap 4, the full instruction <a href="https://getbootstrap.com/docs/4.3/migration/">here</a> after you upgraded the base code you need to update the markups.
+The first step to migrate AdminLTE v2.4.x to v3.0 is upgrade the Bootstrap 3 base code to Bootstrap 4, the full instruction [here](https://getbootstrap.com/docs/4.4/migration/) after you upgraded the base code you need to update the markups.
 
 #### CSS / JS Files
 

pages/UI/modals.html

@@ -771,7 +771,7 @@
                 </button>
                 <div class="text-muted mt-3">
                   Instructions for how to use modals are available on the
-                  <a href="https://getbootstrap.com/docs/4.5/components/modal/">Bootstrap documentation</a>
+                  <a href="https://getbootstrap.com/docs/4.4/components/modal/">Bootstrap documentation</a>
                 </div>
               </div>
               <!-- /.card -->