fixed some broken links & explained

README.md

@@ -25,7 +25,7 @@ therefore we conclude that if we register the amplitude of the strike power and
 {
   strike_number : 5,    // This tells the current strike count
   amplitude     : 50,   // This tells how hard was it struck
-  timestamp     :       // This tells the time of the strike
+  timestamp     : 2.45  // This tells the time in seconds of the strike
 }
 ```