npm_and_yarn in /site for gatsby-remark-copy-linked-files, gatsby-remark-images, gatsby-remark-prismjs, gatsby-remark-responsive-iframe - Update #877197853

npm_and_yarn in /site for gatsby-remark-copy-linked-files, gatsby-remark-images, gatsby-remark-prismjs, gatsby-remark-responsive-iframe - Update #877197853 #56