add sven map install instruction

README.md

@@ -36,8 +36,9 @@ Sven Co-op maps often need converting before they can be used in Half-Life. Not
 
 1. Create a folder and copy `scripts/convert_map.py` to the new folder.
 2. Add modelguy, ripent, bspguy, and wadmaker to the same folder. modelguy and bspguy need to be built from source because the latest releases are missing features.
-3. Update `valve_path` in the script to point to your `Half-Life/valve` folder.
-4. Install imagemagick and ffmpeg. Make sure `magick` and `ffmpeg` are usable from the command-line.
+3. Copy `resguy_default_content_hl.txt` [from resguy](https://github.com/wootguy/resguy/blob/master/config/resguy_default_content_hl.txt) to the folder, and rename it to `resguy_default_content.txt`
+4. Update `valve_path` in the script to point to your `Half-Life/valve` folder.
+5. Install imagemagick and ffmpeg. Make sure `magick` and `ffmpeg` are usable from the command-line.
 1. Extract a map package to the folder (`maps/` should end up next to the script)
 2. Run the script