ADD index for project_educodes table

db/migrate/20201022164823_add_index_for_project_id_to_project_educoders.rb

@@ -0,0 +1,6 @@
+class AddIndexForProjectIdToProjectEducoders < ActiveRecord::Migration[5.2]
+  def change
+    add_index :project_educoders, :repo_name
+    add_index :project_educoders, :project_id
+  end
+end