Merge pull request #55 from carbonplan/Shane98c/plausible

add plausible

Author: Shane98c

pages/_app.js

@@ -1,3 +1,4 @@
+import React from 'react'
 import { ThemeProvider } from 'theme-ui'
 import { MDXProvider } from '@mdx-js/react'
 import '@carbonplan/components/fonts.css'
@@ -8,6 +9,14 @@ import theme from '@carbonplan/theme'
 const App = ({ Component, pageProps }) => {
   return (
     <ThemeProvider theme={theme}>
+      {process.env.NEXT_PUBLIC_VERCEL_ENV === 'production' && (
+        <Script
+          strategy='lazyOnload'
+          data-domain='carbonplan.org'
+          data-api='https://carbonplan.org/proxy/api/event'
+          src='https://carbonplan.org/js/script.file-downloads.outbound-links.js'
+        />
+      )}
       <MDXProvider>
         <Component {...pageProps} />
       </MDXProvider>