updated readme

README.md

@@ -59,9 +59,52 @@ There are a few utility methods provided by tbd to make generating more random d
 
 This is used for selecting a random value from an array:
 
-    tbd.from({ foo: 1 }).prop('foo').use(tbd.utils.random(1,2,3,4,5,6,7,8,9)).make(10);
+    tbd.from({ foo: 1 })
+        .prop('foo').use(tbd.utils.random(1,2,3,4,5,6,7,8,9))
+        .make(10);
     //foo's value will be randomly selected from the array for each object created
 
+**tbd.utils.range**
+
+This is used for randomly choosing a value from a range, similar to the `random` method but simpler as you specify an upper and lower bounds:
+
+    tbd.from({ foo: 1 })
+        .prop('foo').use(tbd.utils.range(1, 1000))
+        .make(10);
+    //foo's value will be randomly chosen from a number between 1 and 1000 (inclusive)
+
+Ranges don't have to be just numbers, they can also be dates:
+
+    tbd.from({ date: new Date })
+        .prop('date').use(tbd.utils.range(new Date(2010, 1, 1), new Date()))
+        .make(10);
+    //the date propery will be a randomly chosing date between the min and max
+
+**tbd.utils.sequence**
+
+This is used for creating a sequential set of data from a starting value:
+
+    tbd.from({ foo: 1 })
+        .prop('foo').use(tbd.utils.sequential(1))
+        .make(10);
+    //[0].foo === 1, [9].foo === 10
+
+Sequentials support numbers, letters (and words, where the next letter in the alphabet is appended) and dates:
+
+    tbd.from({ date: new Date })
+        .prop('foo').use(tbd.utils.sequential(new Date() /* optional parameter for date property the increment, default is 'd' */)
+        .make(10);
+    //the 'day' property will be incremented by 1 from the starting value
+
+Dates allow you to increment any part of the date object (except milliseconds), to do so pass in a 2nd argument:
+
+* y -> Year
+* M -> Month
+* d -> Day (default)
+* h -> Hour
+* m -> Minutes
+* s -> Seconds
+
 ## Browser
 
 When using tbd in the browser it works exactly the same way, only you don't need the `require` statement (unless you want to use RequireJS).