1diff --git b/LICENSE a/LICENSE 2new file mode 100644 3index 0000000..4a8554d 4--- /dev/null 5+++ a/LICENSE 6@@ -0,0 +1,21 @@ 7+MIT License 8+ 9+Copyright (c) 2020 Soveu 10+ 11+Permission is hereby granted, free of charge, to any person obtaining a copy 12+of this software and associated documentation files (the "Software"), to deal 13+in the Software without restriction, including without limitation the rights 14+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 15+copies of the Software, and to permit persons to whom the Software is 16+furnished to do so, subject to the following conditions: 17+ 18+The above copyright notice and this permission notice shall be included in all 19+copies or substantial portions of the Software. 20+ 21+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 22+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 23+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 24+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 25+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 26+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 27+SOFTWARE. 28