fix mismatched quotemarks

Author: Lauren McCarthy

src/templates/pages/libraries/index.hbs

@@ -268,7 +268,7 @@ slug: libraries/
       <a href="https://github.com/processing/p5.js/blob/master/developer_docs/creating_libraries.md">
         {{#i18n "create-your-own2"}}{{/i18n}}</a>
         {{#i18n "create-your-own3"}}{{/i18n}}
-        <a href="https://docs.google.com/forms/d/e/1FAIpQLSdWWb95cfvosaIFI7msA7XC5zOEVsNruaA5klN1jH95ESJVcw/viewform" target="_blank">{{#i18n "create-your-own4'}}{{/i18n}}</a></p>
+        <a href="https://docs.google.com/forms/d/e/1FAIpQLSdWWb95cfvosaIFI7msA7XC5zOEVsNruaA5klN1jH95ESJVcw/viewform" target="_blank">{{#i18n "create-your-own4"}}{{/i18n}}</a></p>
 
     </section>