misc small updates

Author: deminy

README.md

@@ -15,6 +15,7 @@ For more information, visit his website at <http://www.daemonology.net/bsdiff/>.
 
 * PHP 7.2 to PHP 8.x
 * BZip2 1.0+
+* Linux, macOS, or Windows
 
 ## Installation
 

config.w32

@@ -12,8 +12,8 @@ if (PHP_BZ2 != "no") {
 ARG_ENABLE('bsdiff', 'Whether to enable bsdiff support', 'no');
 
 if (PHP_BSDIFF != 'no') {
-	AC_DEFINE('HAVE_BSDIFF', 1, 'bsdiff support enabled');
+    AC_DEFINE('HAVE_BSDIFF', 1, 'bsdiff support enabled');
 
-	PHP_INSTALL_HEADERS("ext/bsdiff", "php_bsdiff.h bsdiff.h bspatch.h");
-	EXTENSION('bsdiff', 'php_bsdiff.c bsdiff.c bspatch.c', null, '/DZEND_ENABLE_STATIC_TSRMLS_CACHE=1');
+    PHP_INSTALL_HEADERS("ext/bsdiff", "php_bsdiff.h bsdiff.h bspatch.h");
+    EXTENSION('bsdiff', 'php_bsdiff.c bsdiff.c bspatch.c', null, '/DZEND_ENABLE_STATIC_TSRMLS_CACHE=1');
 }