Fix build badge.

Author: nsaunders

.github/workflows/verify.yml renamed to .github/workflows/build.yml

@@ -1,4 +1,4 @@
-name: Verify
+name: Build
 
 on:
   push:

README.md

@@ -1,4 +1,4 @@
-# purescript-typedenv ![Build](https://github.com/nsaunders/purescript-typedenv/workflows/verify/badge.svg) [![purescript-typedenv on Pursuit](https://pursuit.purescript.org/packages/purescript-typedenv/badge)](https://pursuit.purescript.org/packages/purescript-typedenv) [![typedenv in package-sets](https://img.shields.io/endpoint.svg?url=https://package-sets-badge-zxa7vacp3dju.runkit.sh/typedenv)](https://github.com/purescript/package-sets)
+# purescript-typedenv [![Build](https://github.com/nsaunders/purescript-typedenv/workflows/Build/badge.svg)](https://github.com/nsaunders/purescript-typedenv/actions/workflows/build.yml) [![purescript-typedenv on Pursuit](https://pursuit.purescript.org/packages/purescript-typedenv/badge)](https://pursuit.purescript.org/packages/purescript-typedenv) [![typedenv in package-sets](https://img.shields.io/endpoint.svg?url=https://package-sets-badge-zxa7vacp3dju.runkit.sh/typedenv)](https://github.com/purescript/package-sets)
 ## Parse environment variables according to a type-level specification.
 
 <img src="https://raw.githubusercontent.com/nsaunders/purescript-typedenv/master/img/tile.png" alt="purescript-typedenv" align="right" />