updated description length

Author: chrisdedman

backend/internal/entity/course.go

@@ -5,7 +5,7 @@ import "gorm.io/gorm"
 type Course struct {
 	gorm.Model
 	Title       string    `gorm:"size:255;not null;" json:"title"`
-	Description string    `gorm:"size:255;not null;" json:"description"`
+	Description string    `gorm:"size:500;not null;" json:"description"`
 	CreatorID   int       `gorm:"foreignKey" json:"creator_id"`
 	Students    []Account `gorm:"many2many:enrollment;" json:"-"`
 	Tags        []Tag     `gorm:"many2many:course_tag;" json:"tags"`