change license text format

LICENSE.md

@@ -13,13 +13,12 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 
-```
 -------------------------------------------------------------------------
+
                                  Apache License
                            Version 2.0, January 2004
                         http://www.apache.org/licenses/
 
-
    TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
 
    1. Definitions.
@@ -192,4 +191,3 @@ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
       of your accepting any such warranty or additional liability.
 
    END OF TERMS AND CONDITIONS
-```