Add licence and attribution (#1)

* add mit licence and ro crate file with attribution

* update licence

* update crate

LICENCE

@@ -0,0 +1,18 @@
+MIT License
+
+Copyright (c) Alice Zhao
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+associated documentation files (the "Software"), to deal in the Software without restriction,
+including without limitation the rights to use, copy, modify, merge, publish, distribute,
+sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
+OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

ro-crate-metadata.json

@@ -0,0 +1 @@
+{"@context":["https://w3id.org/ro/crate/1.1/context",{"@base":null,"author":"https://schema.org/author","object":"https://schema.org/object","datePublished":"https://schema.org/datePublished","mainEntity":"https://schema.org/mainEntity"}],"@graph":[{"@id":"ro-crate-metadata.json","@type":"CreativeWork","conformsTo":{"@id":"https://w3id.org/ro/crate/1.1"},"about":{"@id":"./"},"name":"ro-crate-metadata.json","@reverse":{}},{"@id":"./","@type":"Dataset","name":"Taylor Swift Data","author":{"@id":"https://github.com/adashofdata"},"mainEntity":[{},{"@id":"https://github.com/describo/dataset-TaylorSwiftData"}],"@reverse":{"about":{"@id":"ro-crate-metadata.json"}},"license":{"@id":"https://creativecommons.org/licenses/by-sa/4.0"}},{"@id":"https://github.com/adashofdata","@type":"Person","name":"Alice Zhao","@reverse":{"author":{"@id":"./"}}},{"@id":"https://github.com/describo/dataset-TaylorSwiftData","@type":"URL","name":"https://github.com/describo/dataset-TaylorSwiftData","@reverse":{"mainEntity":{"@id":"./"}}},{"@id":"https://creativecommons.org/licenses/by-sa/4.0","@type":"CreativeWork","name":"Taylor Swift Data © 2023 by Alice Zhao is licensed under CC BY-SA 4.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/4.0.","description":"Taylor Swift Data © 2023 by Alice Zhao is licensed under CC BY-SA 4.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/4.0.","@reverse":{"license":{"@id":"./"}}}]}