Topics.md

Topics we've covered:

1. Introduction
2. Starting new SpringBoot services
3. Domain and Scaling
4. Synchronous communication - REST communication between two SpringBoot services
5. Asynchronous communication between two SpringBoot services
   1. Domain, and information flow
   2. Slow or broken communication
   3. Asynchronous communication overview
6. Containerization - Docker
7. Gateway - Access to the system
8. Centralized configuration
9. More Docker - Docker compose
10. Software Quality - Testing and Cucumber
11. Spring Security
12. Orchestration, Deployment - Docker compose - and scaling
13. Centralized logging