Update flasm.md

added Help text

tools/flasm.md

@@ -8,6 +8,27 @@ It lets you make changes to any SWF. Flasm fully supports SWFs produced by Macro
 Help Text
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 ```
+Flasm 1.62 build Feb 12 2011
+
+(c) 2001 Opaque Industries, (c) 2002-2007 Igor Kogan, (c) 2005 Wang Zhen
+All rights reserved. See LICENSE.TXT for terms of use.
+
+Usage: flasm [command] filename
+
+Commands:
+   -d     Disassemble SWF file to the console
+   -a     Assemble Flasm project (FLM)
+   -u     Update SWF file, replace Flasm macros
+   -b     Assemble actions to __bytecode__ instruction or byte sequence
+   -z     Compress SWF with zLib
+   -x     Decompress SWF
+
+Backups with $wf extension are created for altered SWF files.
+
+To save disassembly or __bytecode__ to file, redirect it:
+flasm -d foo.swf > foo.flm
+flasm -b foo.txt > foo.as
+
 
 ```