add license, readme

LICENSE

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+MIT License
+
+Copyright (c) 2021 x186k developers
+Copyright (c) 2021 Cameron Elliott http://cameronelliott.com
+
+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

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+# sfu1-binaries
+
+Binary files for sfu1 SFU, must be checked out side by side with sfu1.
+
+The reason this is used as opposed to putting binaries directly inside of 'sfu1' is that binaries and git repos can grow in size very rapidly when changing/iterating binary files lots.
+This repo can easily be compacted by:
+
+```bash
+rm -rf .git
+git add .
+git commit -m 'compacting'
+git remote add origin https://github.com/x186k/sfu1-binaries.git
+git branch -M main
+git push -u origin main
+```
+
+I was using git LFS, but lots of builds will quickly use up your github LFS quota,
+and that disables LFS. This seemed better for this reason.