Readme added

README.md

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+<img src="./images/Banner.png" width="100%">
+
+# Poll Booth
+Poll Booth is a free live polling tool for engaging audience of all size. Capture powerful feedback instantly during virtual meetings, classes, events, and more.
+
+
+## Live
+<pre><a href="https://pollbooth.herokuapp.com/">https://pollbooth.herokuapp.com/</a></pre>
+
+## Set up
+
+##### Clone the repository
+
+```bash
+git clone https://github.com/SaranshDawra/Live-Polling.git
+```
+
+##### Move to the desired folder
+
+```bash
+cd Live-Polling
+```
+
+##### Set Environment Variables
+
+* Create a `.env` file and add the following
+
+```bash
+MONGODB_URI=Your MongoDB URL
+```
+
+##### Install Dependencies
+
+```bash
+npm install
+cd client
+npm install
+```
+
+##### Run
+
+```bash
+# Run frontend (:3000) & backend (:5000)
+npm run dev
+
+# Run frontend
+npm run client
+
+# Run backend
+npm run server
+```
+
+[![forthebadge](https://forthebadge.com/images/badges/built-with-love.svg)](https://www.linkedin.com/in/saranshdawra/)