readme: update for requirements.txt

README.md

@@ -5,8 +5,8 @@ Helpful scripts to get information from http://metal-archives.com
 ## installation
 
 1. install `python3` and `python3-pip` from your package manager (UNIX), or http://python.org/getit/windows (Windows)
-2. install the required libs: `pip3 install urllib bs4 requests lyricfetcher`
-3. put them somewhere in your $PATH, (or alternatively run `sudo make install`)
+2. install the required libs: `pip3 install -r requirements.txt`
+3. put them somewhere in your `$PATH`, (or alternatively run `sudo make install`)
 
 ## screenshots
 
@@ -36,6 +36,5 @@ Helpful scripts to get information from http://metal-archives.com
 
 ------
 
-Originally these were methods from http://github.com/mitchweaver/diskvlt-bot
-
+Originally these were methods from an old chat bot.  
 But as they are so handy, I now use them to categorize and tag my music.

requirements.txt

@@ -0,0 +1,4 @@
+bs4
+html5lib
+requests
+lyricfetcher