Added README.md

Author: sejalsksagar

YouTube Audio Downloader/README.md

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+# How To Download Audio Of A YouTube Video?
+
+1. Setup python and pip if you haven’t already
+
+2. Install virtualenv
+
+`pip install virtualenv`
+
+3. Create Virtual environment
+
+`virtualenv venv`
+
+4. Activate virtual environment
+
+- `source venv/bin/activate` (Linux)
+- `venv\Scripts\activate` (Windows)
+
+5. Install requirements
+
+`pip install -r requirements.txt`
+
+6. Specify url of the YouTube video whoose audio you want (in YouTubeAudioDownloader.py)
+
+ex: `url = "https://www.youtube.com/watch?v=ZSXN_dpG5jk"`
+
+7. Run YouTubeAudioDownloader.py
+
+![YouTubeAudioDownloader.py Output](https://github.com/sejalsksagar/Amazing-Python-Scripts/blob/youtube_audio/YouTube%20Audio%20Downloader/Output.PNG)
+
+You will find file of .webm format downloaded in the same folder.
+
+## How To convert .webm to .mp3 format?
+
+1. Install moviepy in the same environment
+
+`pip install moviepy==1.0.3`
+
+2. Specify path of .webm file (in WebmToMp3.py)
+
+ex: `clip = mp.AudioFileClip("C:/Users/sejal/Desktop/YouTube Audio Downloader/Rainbow.webm").subclip()`
+
+3. Specify path where .mp3 file should be saved (in WebmToMp3.py)
+
+ex: `clip.write_audiofile("C:/Users/sejal/Desktop/YouTube Audio Downloader/rainbow.mp3")`
+
+4. Run WebmToMp3.py
+
+![YouTube Audio Downloader Folder](https://github.com/sejalsksagar/Amazing-Python-Scripts/blob/youtube_audio/YouTube%20Audio%20Downloader/Folders.PNG)