Add LICENSE file and update README formatting

Author: maxwell-hauser

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Maxwell Hauser
+
+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

@@ -391,9 +391,4 @@ A: Hex uses all 16 patterns (0-9, A-F). BCD only uses patterns 0-9, with 10 of 1
 ← Previous: [Chapter 9 - Floating Point](../ch9_floating_point_representation/) | Next: [Chapter 11 - Coding Schemas](../ch11_coding_schemas/) →
 
 ---
-
-## Authorship
-Authored by Maxwell Hauser on November 19, 2025
-
-## License
-MIT License
+<!-- License moved to dedicated LICENSE file -->