Created Converting to FR Tilesets (markdown)

Converting-to-FR-Tilesets.md

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+## Converting Emerald tilesets to Fire Red
+
+credit to ghoulslash
+
+It's common to want the replace emerald's graphics with FR styled ones, including tilesets. This tnutorial goes over the process of how to convert pokeemerald's tilesets with those from Fire Red/pokefirered
+
+This tutorial explains how to copy a tileset from pokefirered over to pokeemerald and convert it to the correct metatile_attributes size.
+
+### 1. Open include/fieldmap.h
+
+Copy the defines at the top from the file in pokefirered like so:
+```c
+#define NUM_TILES_IN_PRIMARY 640
+#define NUM_TILES_TOTAL 1024
+#define NUM_METATILES_IN_PRIMARY 640
+#define NUM_METATILES_TOTAL 1024
+#define NUM_PALS_IN_PRIMARY 7
+```
+
+### 2. Copy your desired tilesets from pokefirered over to emerald
+
+TODO fill in
+
+### 3. Convert all fire red tilesets to emerald
+
+- If you want to convert all tilesets in your data directory:
+  - Grab this script and place it in your root directory: https://github.com/ghoulslash/tools/blob/master/decomps/convert_tilesets.py
+  - Run it like so: `py convert_tilesets.py` from the root directory
+
+- If you want to rip a tileset from an existing ROM
+    - Grab this script: https://github.com/ghoulslash/tools/blob/master/decomps/tileset_ripper.py
+    - Place your ROM in the same directory
+    - Run it like so: `tileset_ripper.py <path to FireRed ROM> <tileset header offset> <name to dump to> <number of metatiles, optional>`
+
+
+
+- If you want to convert a single tileset:
+   - Grab this script: https://github.com/ghoulslash/tools/blob/master/decomps/convert_metatile_attributes.py
+   - Run it like so: `./convert_metatile_attribytes.py <tileset dir name> <primary vs. secondary>`
+