fix(docs): add webpack - brand names, code language, code fences (#23465)
fix(docs): add webpack - brand names, code language, code fences (#23465)

* fix brand names, code language

* Fix typo

Co-authored-by: Aisha Blake <0361fe97c7c02ef86800dedecb1220f5cf5f3320@gatsbyjs.com>
gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby