code: public GitlabBadge addProjectBadge(Serializable projectId, String linkUrl, String imageUrl) throws IOException {
          String tailUrl = GitlabProject.URL + "/" + sanitizeProjectId(projectId) + GitlabBadge.URL;
          return dispatch().with("link_url", linkUrl)
                  .with("image_url", imageUrl)
                  .to(tailUrl, GitlabBadge.class);
      }
docs: Add project badge
  
  @param projectId The id of the project for which the badge should be added
  @param linkUrl   The URL that the badge should link to
  @param imageUrl  The URL to the badge image
  @return The created badge
  
  @throws IOException on GitLab API call error