This is very simple, that is, sort out some training courses you attended during your work, mark the time and list them. Training may include vocational skills, legal aspects, professional aspects and so on.

Basic format of resume education and training experience: I have passed the skills training of XX education and training institutions, and the training duration is XX months. During the training period, I independently completed (participated in) the XX project, held the post of XX in the project, and was responsible for the XX module of the XX task. The project won the honor of XX, but it was put into the market without honor.

Nowadays, many interviewers attach great importance to academic qualifications and training experience, and suggest that writing should be linked to job hunting as much as possible.