Add README.md, LICENSE and COPYING.LIB

LICENSE

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+Copyright (c) 1993-2025 the Wine project authors (see the file AUTHORS
+for a complete list)
+
+Wine is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the
+Free Software Foundation; either version 2.1 of the License, or (at
+your option) any later version. 
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+A copy of the GNU Lesser General Public License is included in the
+Wine distribution in the file COPYING.LIB. If you did not receive this
+copy, write to the Free Software Foundation, Inc., 51 Franklin St,
+Fifth Floor, Boston, MA 02110-1301, USA.

README.md

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+# winedll
+
+This repository builds a standalone, universal version of Wine's msvcrt/ucrtbase using Clang.
+
+## Building
+
+```
+cmake --preset debug
+cmake --build --preset debug
+```
+
+The built DLL will be located at `build/debug/dlls/msvcrt/msvcrt.dll`.
+
+Use `--preset release` to build a release binary to `build/release/dlls/msvcrt/msvcrt.dll`.
+
+## License
+
+The code in this repository is derived from Wine sources, which are licensed under LGPLv2.1+.
+
+See [LICENSE](LICENSE) and [COPYING.LIB](COPYING.LIB) for details.