Add MIT license

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) European Organization for Nuclear Research (CERN)
+
+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.

README.md

@@ -11,3 +11,7 @@ and `TSC_COMPILE_ON_ERROR=true`
 
 ## Deployed version
 The app is deployed for production usage on https://checkin.getindico.io (hosted at CERN's datacenter in Switzerland) and may be freely used by anyone.
+
+## Note
+In applying the MIT license, CERN does not waive the privileges and immunities granted to it
+by virtue of its status as an Intergovernmental Organization or submit itself to any jurisdiction.