Add LICENSE and update README

Author: cboulay

README.md

@@ -117,8 +117,7 @@ This documentation is part of the ezmsg project. See [LICENSE](LICENSE) for deta
 
 - **Issues**: Report documentation issues in this repository's [issue tracker](https://github.com/ezmsg-org/ezmsg-org.github.io/issues)
 - **Code issues**: Report to the respective package repository
-- **Community**: Join discussions in the [ezmsg organization](https://github.com/ezmsg-org)
 
 ## Acknowledgments
 
-The ezmsg project is supported by Johns Hopkins University (JHU), the JHU Applied Physics Laboratory (APL), and the Wyss Center for Bio and Neuro Engineering.
+The ezmsg project is supported by Johns Hopkins University (JHU), the JHU Applied Physics Laboratory (APL), the Wyss Center for Bio and Neuro Engineering, and Blackrock Neurotech.

docs/source/extensions/LICENSE

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) 2022 Johns Hopkins University Applied Physics Lab
+
+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.