Update README.md

Author: probablykasper

README.md

@@ -144,8 +144,6 @@ create_units!(
 
 The number associated with a unit is it's "weight". For example, if a second's weight is `1`, then a minute's weight is `60`.
 
-I have found [translatorscafe.com](https://www.translatorscafe.com/unit-converter) and [calculateme.com](https://www.calculateme.com/) to be good websites for unit conversion. Wikipedia is worth looking at as well.
-
 #### 2. Add a test for the unit
 Make sure to also add a test for each unit. The tests look like this:
 ```rs