Fixed type ext to text

ONBOARDING.md

@@ -158,7 +158,7 @@ The functionality of FarmData2 is tested using the [Cypress framework](https://w
 The Cypress end-to-end test framework works by controlling the web browser. A test typically consists of a series of steps that are automated by the Cypress tests, called _spec_s. A typical spec consist of the steps:
   1. Setup the test (e.g. login, prime the database)
   1. Visit a specific page
-  1. Query the page for an _html element_ of interest (e.g. button, ext field)
+  1. Query the page for an _html element_ of interest (e.g. button, text field)
   1. Interact with that element (e.g. click the button, enter some text)
   1. Make an assertion about the result (e.g. new information appears on the page)