Update README.md

README.md

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-# free-bandcamp-downloader
+# free-bandcamp-downloader
+
+Download free and $0 minimum albums and tracks from Bandcamp
+
+## Installation
+
+Requires Firefox and [geckodriver](https://github.com/mozilla/geckodriver/releases)
+
+Make sure geckodriver is in your PATH environment variable
+
+Install with pip
+```
+py -m pip install git+https://github.com/7x11x13/free-bandcamp-downloader
+```
+
+## Usage
+
+```Usage:
+    bcdl-free (-a <URL> | -l <URL>)[--force][-d | --dir <dir>][-e | --email <email>]
+        [-z | --zipcode <zipcode>][-c | --country <country>][-f | --format <format>]
+    bcdl-free setdefault [-d | --dir <dir][-e | --email <email>][-z | --zipcode <zipcode>]
+        [-c | --country <country>][-f | --format <format>]
+    bcdl-free defaults
+    bcdl-free clear
+    bcdl-free (-h | --help)
+    bcdl-free --version
+Options:
+    -h --help                   Show this screen
+    --version                   Show version
+    -a <URL>                    Download the album at URL
+    -l <URL>                    Download all free albums of the label at URL
+    --force                     Download even if album has been downloaded before
+    setdefault                  Set default options
+    defaults                    List the default options
+    clear                       Clear download history
+    -d --dir <dir>              Set download directory
+    -c --country <country>      Set country
+    -z --zipcode <zipcode>      Set zipcode
+    -e --email <email>          Set email
+    -f --format <format>        Set format
+Formats:
+    - FLAC
+    - V0MP3
+    - 320MP3
+    - AAC
+    - Ogg
+    - ALAC
+    - WAV
+    - AIFF```