Adding a readme that github can understand.

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+# Factor
+
+The Factor programming language combines [powerful language
+features](http://concatenative.org/wiki/view/Factor/Features/The%20language)
+with a [full-featured
+library](http://docs.factorcode.org/content/article-vocab-index.html). The
+implementation is [fully
+compiled](http://concatenative.org/wiki/view/Factor/Optimizing%20compiler)
+for performance, while still supporting [interactive
+development](http://concatenative.org/wiki/view/Factor/Interactive%20development).
+Factor applications are portable between all common platforms.  Factor can
+[deploy stand-alone
+applications](http://concatenative.org/wiki/view/Factor/Deployment) on all
+platforms.  Full source code for the Factor project is available under a BSD
+license.
+
+## Getting Started
+
+If you are reading this README file, you either downloaded a binary
+package, or checked out Factor sources from the GIT repository.
+
+* [Learning Factor](http://concatenative.org/wiki/view/Factor/Learning)
+* [System requirements](http://concatenative.org/wiki/view/Factor/Requirements)
+* [Building Factor from source](http://concatenative.org/wiki/view/Factor/Building%20Factor) (don't do this if you're using a binary package)
+
+To run Factor:
+
+* Windows: Double-click `factor.exe`, or run `.\factor.com` in a command prompt
+* Mac OS X: Double-click `Factor.app` or run `open Factor.app` in a Terminal
+* Unix: Run `./factor` in a shell
+
+A tutorial is available that can be accessed from the Factor environment:
+
+```factor
+"first-program" help
+```
+
+Some other simple things you can try in the listener:
+
+```factor
+"Hello, world" print
+
+{ 4 8 15 16 23 42 } [ 2 * ] map .
+
+1000 [1,b] sum .
+
+4 iota  [
+    "Happy Birthday " write
+    2 = "dear NAME" "to You" ? print
+] each
+```
+
+## Documentation
+
+The Factor environment includes extensive reference documentation and a
+short "cookbook" to help you get started. The best way to read the
+documentation is in the UI; press F1 in the UI listener to open the help
+browser tool. You can also [browse the documentation
+online](http://docs.factorcode.org).
+
+## Command Line Usage
+
+Factor supports a number of command line switches:
+
+```
+Usage: factor [Factor arguments] [script] [script arguments]
+
+Common arguments:
+    -help            print this message and exit
+    -i=<image>       load Factor image file <image> (default factor.image)
+    -run=<vocab>     run the MAIN: entry point of <vocab>
+        -run=listener    run terminal listener
+        -run=ui.tools    run Factor development UI
+    -e=<code>        evaluate <code>
+    -no-user-init    suppress loading of .factor-rc
+
+Enter
+    "command-line" help
+from within Factor for more information.
+```
+
+You can also write scripts that can be run from the terminal, by putting
+``#!/path/to/factor`` at the top of your scripts and making them executable.
+
+## Source Organization
+
+The Factor source tree is organized as follows:
+
+* `build-support/` - scripts used for compiling Factor (not present in binary packages)
+* `vm/` - Factor VM source code (not present in binary packages)
+* `core/` - Factor core library
+* `basis/` - Factor basis library, compiler, tools
+* `extra/` - more libraries and applications
+* `misc/` - editor modes, icons, etc
+* `unmaintained/` - unmaintained contributions, please help!
+
+## Community
+
+Factor developers meet in the `#concatenative` channel on
+[irc.freenode.net](http://freenode.net). Drop by if you want to discuss
+anything related to Factor or language design in general.
+
+* [Factor homepage](http://factorcode.org)
+* [Concatenative languages wiki](http://concatenative.org)
+
+Have fun!