Excerpts and blog lists (mostly)

config/filters/index.js

@@ -4,4 +4,6 @@ const arrayFilters = require('./arrays');
 module.exports = function(eleventyConfig) {
     eleventyConfig.addPlugin(dateFilters);
     eleventyConfig.addPlugin(arrayFilters);
+
+    eleventyConfig.addFilter('keys', obj => Object.keys(obj))
 }