Add BP rates page to changes

README.md

 This is Canal Street's Fork of Oppaitime's version of Gazelle.  
 
-Below are some lists of differences between this version of Gazelle and Oppatimes's. Please note that these lists are far from complete.
+Below are some lists of differences between this version of Gazelle and Oppaitimes's. Please note that these lists are far from complete.
 
 ## Major Changes
 
 ## Minor Changes
 
 * Calculate BP using PTP's formula
+* BP Rates Page