breaking: replace bytes with byte, upd parser, etc

README.md

@@ -12,13 +12,16 @@ Example:
 import dataunits
 
 fn main() {
+	// convert via convert fn
 	kilobytes := dataunits.convert(500, dataunits.mbit, dataunits.kb)
 	println(kilobytes) // 62500.0
 
+	// convert via DataSize method (the arguments order matters)
 	mebibytes := (dataunits.gib * 15).mib()
 	println(mebibytes) // 15360.0
 
-	bytes := dataunits.DataSize(2000 * dataunits.gib).bytes()
+	// convert via DataSize method with explicit type cast
+	bytes := dataunits.DataSize(2000 * dataunits.gib).byte()
 	println(bytes) // 2.147483648e+12 == 2147483648000
 }
 ```