fix(gatsby-remark-images): Escape HTML characters for image caption (#14496)
fix(gatsby-remark-images): Escape HTML characters for image caption (#14496)

* fix(gatsby-remark-images): Escape HTML characters for image caption

* Fix prettier style

ChristopherBiscardi/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby