Show example output in Readme.

README.md

@@ -23,10 +23,11 @@ The library is still in active development with a v0.1 launch planned for March
 import qualified Data.DataFrame as D
 
 import Data.DataFrame ((|>))
+import Data.Text (Text)
 
 main :: IO ()
     df <- D.readTsv "./data/chipotle.tsv"
-    let searchTerm = "Chicken Burrito" :: T.Text
+    let searchTerm = "Chicken Burrito" :: Text
     print $ df
       |> D.select ["item_name", "quantity"]
       |> D.filter "item_name" (searchTerm ==)
@@ -35,6 +36,26 @@ main :: IO ()
       |> D.sortBy D.Descending "Sum_quantity"
 ```
 
+Output:
+
+```
+----------------------------------------------------------------------------------------------------
+index |               item_name               | Sum_quantity |   Mean_quantity    | Maximum_quantity
+------|---------------------------------------|--------------|--------------------|-----------------
+ Int  |                 Text                  |     Int      |       Double       |       Int       
+------|---------------------------------------|--------------|--------------------|-----------------
+0     | Chips and Fresh Tomato Salsa          | 130          | 1.1818181818181819 | 15              
+1     | Izze                                  | 22           | 1.1                | 3               
+2     | Nantucket Nectar                      | 31           | 1.1481481481481481 | 3               
+3     | Chips and Tomatillo-Green Chili Salsa | 35           | 1.1290322580645162 | 3               
+4     | Chicken Bowl                          | 761          | 1.0482093663911847 | 3               
+5     | Side of Chips                         | 110          | 1.0891089108910892 | 8               
+6     | Steak Burrito                         | 386          | 1.048913043478261  | 3               
+7     | Steak Soft Tacos                      | 56           | 1.018181818181818  | 2               
+8     | Chips and Guacamole                   | 506          | 1.0563674321503131 | 4               
+9     | Chicken Crispy Tacos                  | 50           | 1.0638297872340425 | 2
+```
+
 Full example in `./app` folder using many of the constructs in the API.
 
 ### Visual example