Update README.md

Fixed a small typo.

Author: Thomas Kekeisen

README.md

@@ -147,7 +147,7 @@ register an app with BitBucket.
 ```ruby
 BitBucket.configure do |config|
   config.oauth_token   = YOUR_OAUTH_REQUEST_TOKEN          # Different for each user
-  config.oauth_secret  = YOUR_OAUTH_REQUEST_TOKEN_SECRET   # Differenct for each user
+  config.oauth_secret  = YOUR_OAUTH_REQUEST_TOKEN_SECRET   # Different for each user
   config.client_id     = YOUR_OAUTH_CONSUMER_TOKEN
   config.client_secret = YOUR_OAUTH_CONSUMER_TOKEN_SECRET
   config.basic_auth    = 'login:password'