Added Firefox Installation

@@ -4,13 +4,17 @@
 * 조건에 맞는 목적지를 지도와 함께 전송합니다.
 
 ---
-1. [Requirements](#requirements)
-2. [Installation](#Installation)
-3. [Usage](#Usage)
-4. [Roadmap](#Roadmap)
-5. [Contributing](#contributing)
-6. [License](#license)
-7. [Contact](#contact)
+- [About the Project](#about-the-project)
+- [Requirements](#requirements)
+- [Installation](#installation)
+  - [Firefox Installation on AWS EC2](#firefox-installation-on-aws-ec2)
+- [Usage](#usage)
+      - [일정이 있는 경우](#일정이-있는-경우)
+      - [일정이 없는 경우](#일정이-없는-경우)
+- [Roadmap](#roadmap)
+- [Contributing](#contributing)
+- [License](#license)
+- [Contact](#contact)
 
 ---
 
@@ -40,6 +44,30 @@ and add setting.json at root directory for channel access
     "pw": "<ECampus PW>"
 }
 ```
+
+## Firefox Installation on AWS EC2
+
+```sh
+$ cd /usr/local
+$ wget http://ftp.mozilla.org/pub/firefox/releases/101.0/linux-x86_64/en-US/firefox-101.0.tar.bz2
+$ tar xvjf firefox-101.0.tar.bz2
+sudo ln -s /usr/local/firefox/firefox /usr/bin/firefox 
+```
+
+Please Note that some amazon image requires to install dependency manually.
+
+```sh
+$ sudo yum install libXinerama.x86_64 cups-libs dbus-glib
+$ sudo yum install gtk3-devel
+```
+
+You can verify that installation is complete via
+
+```sh
+$ firefox -v
+```
+
+
 # Usage
 #### 일정이 있는 경우
 <img src = "http://khuhub.khu.ac.kr/2018102202/study-or-enjoy/uploads/b63693903e41d13ce90107b24de4dd3c/assignment_1_.png" width = "250"> </img>