32bit readme (#186)

README.md

@@ -107,6 +107,7 @@ The default features are:
 * url: Faster replacements for `url_encode` and `url_decode`.
 
 Additional features are:
+* allow_non_32bit: Disables the forced compile errors on non-32bit targets. Only use this if you know exactly what you are doing.
 * batchnoise: Discrete Batched Perlin-like Noise, fast and multi-threaded - sent over once instead of having to query for every tile.
 * hash: Faster replacement for `md5`, support for SHA-1, SHA-256, and SHA-512. Requires OpenSSL on Linux.
 * iconforge: A much faster replacement for the spritesheet generation system used by [/tg/station].