change README to use Markdown and correct some mistakes

README → README.md

-######### FiXos, alternative UNIX-like kernel for fx9860G ############
-######################################################################
+FiXos, alternative UNIX-like kernel for fx9860G 
+===============================================
 
-
-######################
 Informations
-######################
+-------------
 
 FiXos is a project of kernel, targetting Casio's calculators in a first place,
-designed to be UNIX-like, even if full POSIX compatibility is not aimed.
-
-As Casio's default OS on these platforms never switch to user mode, the kernel
-can be started like an Addin and dealing with protected mode.
-A bootloader is included, and allow to run ELF files as kernel (so this is not
-really a "bootloader", as the real boot is in all case done by Casio's code).
-
-CPU first targeted is the SH3 7705 modified by Casio, used on fx9860, but other
-SuperH support may be added later.
-This CPU is a modern architecture, with priviligied/user mode, MMU for virtual
-memory and memory access control, cache, embedded USB device controler...
+designed to be UNIX-like, even if full POSIX compatibility is _not aimed_.
+
+As Casio's default OS on these platforms never switches to user mode, the kernel
+can be started like an Addin and deals directly with protected mode.
+A bootloader is included, and allows to run ELF files as a kernel (so this is not
+really a "bootloader", the real boot is in all case done by Casio's code for
+now).
+
+The CPU primarly targeted is the SH3 7705 modified by Casio, used on fx9860, but
+other SuperH support may be added later.
+This CPU has a modern architecture, with priviligied/user modes, MMU for virtual
+memory and memory access control, cache, embedded USB device controller...
 All these things allow to have a modern kernel, with a good process isolation.
 
 Finally, do not forget the goal is not to do an amazing kernel. I am working on
-that because it's fun, really interesting, and to do some proof-of-concept.
+that because it's _fun_, really interesting, and to do some proof-of-concept.
 
 
 
-######################
 Build and Install
-######################
+-------------
 
-First of all : be sure about what you are doing before to start!
-This software is not a stable release of your favorite linux kernel. Any part
-of the program may cause damage to your machine, especialy if you are using a
-not tested platform.
+**First of all** : be sure about what you are doing before to start!
+This software is **not** a stable release of your favorite linux kernel. Any part
+of the program may cause damage to your machine, especially if you are using it
+on a not tested platform.
 Of course, I assure you I have never issued important problem when testing the
-kernel on my own calculator, but if for any reason this happen for you, you
+kernel on my own calculator, but if for any reason this happens for you, you
 are warned.
 
 
 To build the project, you must use a GCC toolchain configured for SuperH targets.
 In theory, the whole project use -nostdlib option when invoking GCC, so only
 binutils and compiler itself is needed.
-In addition, you must have a G1A Wrapper tool (two tools exists, my own [1] and
-the original version from Andreas Bertheussen [2] which is better for icons but
-depends on Qt 4 SDK).
-Finaly, even if you can build everything by manually, the project use GNU make
+In addition, you must have a G1A Wrapper tool. Two tools exist : my own,
+[C G1A  Wrapper][1] and the original version from Andreas Bertheussen, the
+[fxSDK's G1A Wrapper][2] which is better for icons but depends on Qt 4 SDK.
+Finaly, even if you can build everything manually, the project uses GNU make
 to be build.
 
 If you are using make tool, please check and modify the values of Makefile
-variables for the different tools names and locations (in most case, only
+variables for the different tool names and locations (in most case, only
 "global.mk" need to be changed, or in simplest case you can add option
-"TOOLCHAIN_PREFIX=<prefix>" to make command).
+"TOOLCHAIN_PREFIX={prefix}" to make command).
 Check root Makefile for the kernel, bootloader/Makefile for the bootloader and
 user/Makefile for userspace things.
 
 Once all is configured, simply execute :
-$ make all
-to build the kernel, bootloader and userland programs.
+```
+make all
+```
+to build the kernel, bootloader and userland test programs.
 If everything works, to run the kernel using the bootloader, you will need
 to copy "bootloader/bootldr.g1a", "bootloader/bootldr.cfg", "fixos" and
 "user/test.elf" on the root of your calculator SMEM file system.
-Any shared library (*.so file) should be put in a directory named "LIB" located
+Any shared library (\*.so file) should be put in a directory named "LIB" located
 on the root of SMEM.
 
 To run the kernel, start bootldr.g1a (its icon shows "FiXos"), and select the
@@ -68,21 +68,17 @@ first loadable entry with [EXE].
 
 
 
-[1] C G1A Wrapper
-http://github.com/Kristaba/C-G1A-Wrapper
+[1]: http://github.com/Kristaba/C-G1A-Wrapper
+[2]: http://sourceforge.net/apps/trac/fxsdk/wiki/g1awrapper
 
-[2] fxSDK's G1A Wrapper
-http://sourceforge.net/apps/trac/fxsdk/wiki/g1awrapper
 
 
-
-
-######################
 Notes
-######################
+----------
 
 Due to a bug into GNU ld 2.21 and earlier, please use a more recent version.
 The fixos.ld script was tested using binutils 2.22 (11/21/2011).
 If you have some troubles like "fixos.ld:xx cannot move location counter backwards"
 it's probably a ld problem.
 
+