Update readme.md

Author: TomDra

readme.md

@@ -2,7 +2,7 @@
 
 Works out average profit per case (Currently only uses gun skin prices), the code only currently works for USD and GBP but is easily changed (So without changes the code will crash unless you live in UK or USA).
 The code takes a while to run as Steam has a limit on requests so it compiles data from CSGOStash as well as SteamMarket, but only uses steam market prices.
-The code should have no need to be changed when a new case gets released, unless they do somthing odd.
+The code should have no need to be changed when a new case gets released, unless they do something odd.
 
 ## Instructions