fixed bug in difference as float and readme update (#6)

README.md

@@ -26,30 +26,30 @@ Sun Apr 28 17:53:11 +0000 UTC 2019
 ## Methods
 ```
 now := godate.Now(time.UTC)
-now.IsAfter(now.Add(1,godate.DAYS)) //false
-now.IsAfter(now.Sub(1,godate.DAYS)) //true
-now.IsBefore(now.Add(1,godate.DAYS)) //true
-now.IsBefore(now.Sub(1,godate.DAYS)) //false
+now.IsAfter(now.Add(1,godate.DAY)) //false
+now.IsAfter(now.Sub(1,godate.DAY)) //true
+now.IsBefore(now.Add(1,godate.DAY)) //true
+now.IsBefore(now.Sub(1,godate.DAY)) //false
 ```
 
 The `Add()` and `Sub()` methods takes two parameters, the `count` and the
 `unit` to add which is any of the constants
 ```
-SECONDS 
-MINUTES
-HOURS
-DAYS 
-WEEKS
-MONTHS
-YEARS
+SECOND
+MINUTE
+HOUR
+DAY
+WEEK
+MONTH
+YEAR
 ```
 
 
 ### Difference
 ```
 now := godate.Now(time.UTC)
-now.Difference(now.Sub(1,godate.DAYS),godate.DAYS) //1 
-now.Difference(now.Add(7,godate.DAYS),godate.WEEKS) //-1
+now.Difference(now.Sub(1,godate.DAY),godate.DAY) //1 
+now.Difference(now.Add(7,godate.DAY),godate.WEEK) //-1
 ```
 
 The `Difference()` method returns the difference of the passed `godate`

godate.go

@@ -49,7 +49,7 @@ func (d GoDate) Difference(compare *GoDate, unit Unit) int {
 //Get the difference as a float
 func (d GoDate) DifferenceAsFloat(compare *GoDate, unit Unit) float64 {
 	duration := d.DifferenceAsDuration(compare)
-	return float64(duration / time.Duration(unit))
+	return float64(duration) / float64(time.Duration(unit))
 }
 
 //Gets the difference between the relative to the date value in the form of