Merge pull request #356 from tevino/patch-1

Corrected a comment's typo
diff --git a/logger.go b/logger.go
index 2fdb231..09bbc9a 100644
--- a/logger.go
+++ b/logger.go
@@ -51,7 +51,7 @@
 	}
 }
 
-// Adds a field to the log entry, note that you it doesn't log until you call
+// Adds a field to the log entry, note that it doesn't log until you call
 // Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
 // If you want multiple fields, use `WithFields`.
 func (logger *Logger) WithField(key string, value interface{}) *Entry {