Update db/schema with comment from rails 6

db/schema.rb

@@ -2,8 +2,8 @@
 # of editing this file, please use the migrations feature of Active Record to
 # incrementally modify your database, and then regenerate this schema definition.
 #
-# This file is the source Rails uses to define your schema when running `rails
+# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `rails db:schema:load` tends to
+# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
 # be faster and is potentially less error prone than running all of your
 # migrations from scratch. Old migrations may fail to apply correctly if those
 # migrations use external dependencies or application code.