Bikash Daga (Jain)

> These are our current links to tutorials: > > * queue-load-leveling: [Queue-Based Load Leveling Pattern](http://java-design-patterns.com/blog/queue-load-leveling/) > * proxy: [Controlling Access With Proxy Pattern](http://java-design-patterns.com/blog/controlling-access-with-proxy-pattern/) > * hexagonal: [Build Maintainable Systems...

Hey, @mikeroyal If the Suggestion is good. can you please approve the PR. Thanks!

Hey, the changes I suggested are relevant or not? Kindly check and let me know if anything changes are required. Thanks

Hey, @cnaohexin @ShumiXu did you get the time to check this? Let me know if any changes are required. Thanks!

Hey, if it's good to go suggestion. Can you please approve the PR. Thanks

Hi, @eshellman! I have made the changes - and fixed all the errors. 1. How do we know which of these courses are free? **- marked *free course*** 2. What...