recreated create topics migration

Author: SmithWebDev

db/migrate/20200709165428_create_topics.rb

@@ -0,0 +1,8 @@
+class CreateTopics < ActiveRecord::Migration[5.2]
+  def change
+    create_table :topics do |t|
+      t.string :title
+      t.timestamps
+    end
+  end
+end