text: exports.createSchemaCustomization = ({ actions }) => {
  	const { createTypes } = actions;
  
  	const typeDefs = `
  		type MarkdownRemark implements Node {
  			frontmatter: Frontmatter
  		}
  		type Frontmatter {
  			coverImg: File @fileByRelativePath
  		}
  	`;
  
  	createTypes(typeDefs);
  };