Delete fonts and Update LICESE file

src/LICENSE.md

@@ -14,6 +14,12 @@
 > You should have received a copy of the license along with this
 > work. If not, see <https://creativecommons.org/licenses/by/4.0/>.
 
+# フォント
+
+| Name  | Author       | License type          | Link                           |
+| :---- | :----------- | :-------------------- | :----------------------------- |
+| Firge | Yuko OTAWARA | SIL Open Font License | https://github.com/yuru7/Firge |
+
 ## その他の使用ライブラリ等の外部ライセンス
 
 {%include "EXTERNAL_LICENSE_REPORT.md" %}