FIX change description column type to longtext

db/migrate/20200715152711_change_description_limt_from_issues.rb

@@ -0,0 +1,5 @@
+class ChangeDescriptionLimtFromIssues < ActiveRecord::Migration[5.2]
+  def change
+    change_column :issues, :description, :longtext
+  end
+end