Doc: Adding HTML Editors Documents (#33343)

* Add new Content flex box

* add content FlexBox

* add content flexbox

* add content flexbox

* improve bootstrap doc

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* Create fcc123

adding jumbotron documentation..

* adding document html editors

* fix: made Editors folder lowercase

* chore: delete unwanted file

guide/english/bootstrap/jumbotron/index.md

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+---
+title: Jumbotron
+---
+
+## Jumbotron
+
+`Jumbotron` is Lightweight, flexible component for showcasing hero unit style content. 
+`Jumbotron` is a responsive component which the main goal is to focus visitor's attention or highlight the special piece of information.
+
+Jumbotron make use of almost any other bootstrap code to additionally increase its engagement value. It's operate with images,enlarged fonts,different backgorund styles etc.
+
+### Most Attracting features of jumbotron
+  
+  - * Showcase the marketing messages on your site
+  - * Project presentation
+  - * Article introduction
+  - * Image showcase
+
+### How to use
+
+Use a `<div>` element with class `.jumbotron` to create a jumbotron:
+
+
+
+**Code Example:**
+```
+<div class="jumbotron">
+  <h1 class="display-4">Hello, world!</h1>
+  <p class="lead">This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or information.</p>
+  <hr class="my-4">
+  <p>It uses utility classes for typography and spacing to space content out within the larger container.</p>
+  <a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a>
+</div>
+   
+```
+#### Fluid jumbotron
+
+To make the jumbotron full width, and without rounded corners, add the `.jumbotron-fluid` modifier class and add a `.container` or `.container-fluid` within.
+
+**Code Example:**
+
+```
+<div class="jumbotron jumbotron-fluid">
+  <div class="container">
+    <h1 class="display-4">Fluid jumbotron</h1>
+    <p class="lead">This is a modified jumbotron that occupies the entire horizontal space of its parent.</p>
+  </div>
+</div>
+```
+
+### More Information:
+
+- [Bootstrap Jumbotron components Doc](https://getbootstrap.com/docs/4.0/components/jumbotron/)