add avatar upload

main.go

@@ -53,6 +53,7 @@ func main() {
 	mainGroup.GET("/users/me", users.GetCurrentUser)
 	mainGroup.GET("/users", users.GetUsers)
 	mainGroup.GET("/users/:id", users.GetUsers)
+	mainGroup.POST("/users/:id/avatar", users.UploadAvatar)
 	mainGroup.DELETE("/users/:id", users.DeleteUser)
 	mainGroup.PATCH("/users/:id", users.UpdateUser)
 	mainGroup.GET("/users/organizations", users.GetOrganizations)