Update README.md

README.md

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-Calendar Merger Project
-Overview
+**Calendar Merger Project**
+**Overview **
+
 The Calendar Merger project is a web application that allows users to merge multiple calendars into a single calendar. The application provides a simple and intuitive interface for users to add calendars, specify prefixes for each calendar, and override the event summaries if desired.
 
-Features
+**Features**
+
 Merge multiple calendars into a single calendar
 Specify prefixes for each calendar
 Override event summaries if desired
 Generate a unique URL for the merged calendar
 Update the merged calendar every hour using a cron job
 
-Requirements
+**Requirements**
+
 Node.js (version 14 or higher)
 Express.js (version 4 or higher)
 ical (version 0.7 or higher)
 axios (version 0.21 or higher)
 cron (version 1.8 or higher)
 
-Installation
+**Installation**
+
 Clone the repository
 Install the dependencies using npm install
 Start the server using npm start
 
-Usage
+**Usage**
+
 Open a web browser and navigate to http://localhost:3000
 Click on the "Add Calendar" button to add a new calendar
 Enter the calendar URL, prefix, and override options as desired
 Click on the "Merge Calendars" button to generate the merged calendar
 The merged calendar URL will be displayed on the page
 
-API Endpoints
+**API Endpoints**
+
 GET /: Returns the index.html file
 POST /merge: Merges the calendars and returns the merged calendar URL
 GET /:filename: Returns the merged calendar file
 
-Contributing
+**Contributing**
+
 Contributions are welcome! If you'd like to contribute to the project, please fork the repository and submit a pull request.