Merge branch 'M2' into 'main'

README.md

application/docker-compose.yml

...java/org/fuseri/model/dto/certificate/CertificateDto.java

...rg/fuseri/model/dto/certificate/CertificateSimpleDto.java

...ain/java/org/fuseri/model/dto/common/DomainObjectDto.java

...del/src/main/java/org/fuseri/model/dto/common/Result.java

...ain/java/org/fuseri/model/dto/course/CourseCreateDto.java

.../src/main/java/org/fuseri/model/dto/course/CourseDto.java

...java/org/fuseri/model/dto/course/ProficiencyLevelDto.java

...n/java/org/fuseri/model/dto/exercise/AnswerCreateDto.java

...rc/main/java/org/fuseri/model/dto/exercise/AnswerDto.java

.../java/org/fuseri/model/dto/exercise/AnswersCreateDto.java

...java/org/fuseri/model/dto/exercise/ExerciseCreateDto.java

.../main/java/org/fuseri/model/dto/exercise/ExerciseDto.java

...java/org/fuseri/model/dto/exercise/QuestionCreateDto.java

.../main/java/org/fuseri/model/dto/exercise/QuestionDto.java

...java/org/fuseri/model/dto/exercise/QuestionUpdateDto.java

...n/java/org/fuseri/model/dto/lecture/LectureCreateDto.java

...rc/main/java/org/fuseri/model/dto/lecture/LectureDto.java

...l/src/main/java/org/fuseri/model/dto/user/AddressDto.java