Fix typo in README description

Corrected 'floating pointer' to 'floating point' in the README.

Author: jgarzik

README.md

@@ -1,6 +1,6 @@
 # apython
 
-A Python 3.12 bytecode interpreter in x86-64 NASM assembly, exploring the fastest x86 single-core Python execution, with a focus on floating pointer and integer performance.
+A Python 3.12 bytecode interpreter in x86-64 NASM assembly, exploring the fastest x86 single-core Python execution, with a focus on floating point and integer performance.
 
 ## What is this?