added manual image guide

wiki-rtd/docs/wiki_faq/faq-scraping.md

@@ -8,7 +8,69 @@ In: `~/retrodeck/ES-DE/downloaded_media` folder.
 
 ## Can I add my own images, manuals, or other media?
 
-The ES-DE Wiki has [instructions](https://gitlab.com/es-de/emulationstation-de/-/blob/master/USERGUIDE.md?ref_type=heads#manually-copying-game-media-files) on adding your own media.
+The ES-DE Wiki has [Instructions: Manually copying game media files](https://gitlab.com/es-de/emulationstation-de/-/blob/master/USERGUIDE.md?ref_type=heads#manually-copying-game-media-files) on adding your own media.
+
+There's a handy spreadsheet that explains each media type:
+
+[Spreadsheet: Media Types in ES-DE](https://docs.google.com/spreadsheets/d/18VJAL44aNxsFOd4pVAONmdWwa7srCSzr2Z2SJEiNKnE/edit?gid=1812680930#gid=1812680930)
+
+### Manually copying game media files
+
+If you already have a library of game media (images, videos and PDF manuals) you can manually copy these files into RetroDECK (ES-DE). 
+
+Requirements: 
+
+- Remember that on Linux filenames are case sensitive.
+- The file extensions must be in lower case in ES-DE (`.png` instead of `.PNG` / `.Png`).
+- The media files names must correspond exactly to the game files name.
+- For directories interpreted as files games (like ScummVM) you will need to add the folder file extension to the media file name example: `dig.scummvm.png`.
+- Supported image file extensions are: `.jpg` and `.png`.
+- Supported video file extensions are: `.avi` , `.mkv` , `.mov` , `.mp4` and `.wmv`.
+
+The default media directory is: `~/retrodeck/ES-DE/downloaded_media/<system name>/<media type>/<files goes here>`
+
+The following media type directories are supported: 
+
+- 3dboxes
+- backcovers
+- covers
+- custom
+- fanart
+- manuals
+- marquees
+- miximages (The miximages are generated by ES-DE)
+- physicalmedia
+- screenshots
+- titlescreens
+- videos
+
+
+
+### Example adding media files to games 
+
+**A multi-disk game or a single game:**
+
+You want to add a screenshot and a video to the game:
+
+`~/retrodeck/roms/c64/Multidisk/Last Ninja 2/Last Ninja 2.m3u`
+
+Then the media files structure needs to be the following:
+
+`~/retrodeck/ES-DE/downloaded_media/c64/screenshots/Multidisk/Last Ninja 2/Last Ninja 2.jpg`
+`~/retrodeck/ES-DE/downloaded_media/c64/videos/Multidisk/Last Ninja 2/Last Ninja 2.mp4`
+
+**A Directories interpreted as files game:**
+
+You want to add a screenshot and a video to the game:
+
+`~/retrodeck/roms/scummvm/dig.scummvm`
+
+The media files for this directory which is interpreted as a file will be:
+
+`~/retrodeck/ES-DE/downloaded_media/scummvm/screenshots/dig.scummvm.png`
+
+`~/retrodeck/ES-DE/downloaded_media/scummvm/videos/dig.scummvm.mp4`
+
 
 ## I got some weird error message about quota after scraping!