summarize this "The final stage of Shopify's value chain involves customer support. This includes answering queries, resolving issues, and offering guidance on using the platform. It encompasses technical assistance, services like Shopify Experts and Shopify Academy, and handling customer feedback to implement improvements. This is the final stage of the value chain. For Shopify, this involves providing support to customers. This includes answering queries, resolving issues, and providing guidance on how to use the platform effectively. This stage involves providing customer support, technical assistance, and additional services such as Shopify Experts and Shopify Academy. It also includes handling customer feedback and implementing improvements based on that feedback