docs: fix method name

Author: javierbrea

README.md

@@ -55,7 +55,7 @@ Sets any [Mocks Server setting][mocks-server-options-url].
 
 Configures the [Mocks Server administration API client](https://github.com/mocks-server/admin-api-client), used under the hood.
 
-##### `cy.mocksSetBeavior("foo")`
+##### `cy.mocksSetBehavior("foo")`
 
 Legacy method that sets behavior in Mocks Server v1.x