docs: fix generated api doc title for createPage (#7210)
docs: fix generated api doc title for createPage (#7210)

Doc currently shows `fileOkCache` instead of `createPage` title

https://next.gatsbyjs.org/docs/actions/#createPage
mingaldrichgan/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,mingaldrichgan/gatsby,mingaldrichgan/gatsby,0x80/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,0x80/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,0x80/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby