Created Installation (markdown)

Installation.md

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+## Step 1:
+
+If you're running Windows 10, [install WSL](https://docs.microsoft.com/en-us/windows/wsl/install-win10). If you're running an older version of Windows, install a Linux VM. If you're already running a Linux OS, you're good to go.
+
+## Step 2:
+
+Install the following packages:
+
+```
+make
+git
+binutils-mips-linux-gnu
+python3
+pip3
+```
+
+For your convenience, you can copy the following:
+
+```
+sudo apt-get update
+sudo apt-get install make
+sudo apt-get install git
+sudo apt-get install binutils-mips-linux-gnu
+sudo apt-get install python3
+sudo apt-get install python3-pip
+```
+
+## Step 3:
+Download build_tools.zip from the Releases section and extract it to the tools folder. This contains the compilers the decompilation uses, as well as a modified version of Qemu to emulate them on a modern Linux system. The compilers must go into the tools folder. Qemu may be placed wherever you like.
+
+## Step 4:
+
+Open up your .bashrc file (~/.bashrc), scroll to the bottom, and add the following, replacing `/path/to/qemu-mips` with the location the qemu-mips you extracted from the build tools:
+
+```
+export QEMU_IRIX="/path/to/qemu-mips"
+export MIPS_BINUTILS_PREFIX=mips-linux-gnu-
+```
+
+Save and close/reopen your terminal window.
+
+## Step 5:
+Make a fork of the main repository https://github.com/zeldaret/mm.git and clone your fork.
+
+## Step 6:
+
+Navigate to the folder you just cloned. Type the following commands:
+
+```
+git submodule update --init --recursive
+pip3 install -r requirements.txt
+```
+
+## Step 7:
+
+You will need to acquire a copy of the ROM. The md5 of this ROM should be `2a0a8acb61538235bc1094d297fb6556`.
+
+Once this has been done, type, replacing `<ROM>` with the name of your ROM:
+```
+./tools/extract_rom.py <ROM>
+```
+
+This will extract all the individual files in the ROM into a newly created baserom folder, as well as decompress the compressed files in a newly created decomp folder.
+
+Next, type:
+```
+make disasm
+```
+
+This will create the build folders as well as a newly created asm folder containing the disassemblies of nearly all the files containing code.
+
+## Step 8:
+
+Type the following:
+```
+make
+```
+
+If all goes well, a ROM rom.z64 should be built and the following text should be printed:
+
+`rom.z64: OK `
+
+If you instead see the following:
+
+```
+rom.z64: FAILED
+md5sum: WARNING: 1 computed checksum did NOT match
+```
+
+This means that something is wrong with the ROM's contents. Either the baserom files are incorrect due to a bad ROM, or some piece of code is not matching.