Add better disclaimer to analog compatibility

docs/advanced/analogcompat.md

@@ -3,11 +3,9 @@ hide:
   - toc
 ---
 
-The VGA-style HD DB15 port on the IO board is intended for analog video output and **does not explicitly output VGA or any one standard.**
+This is a compatibility chart that shows the default Analog video output of MiSTer's cores. This list needs to be updated, it is possible that not every single core matches this list entirely. If you have a computer CRT monitor, any 15kHz core can be scandoubled for compatibility. If you have a consumer CRT television, any 31kHz core likely has a custom video_mode (also called modeline) that could be used to trick your TV into displaying the otherwise 31kHz output with varying success.
 
-This page is titled to reflect this, as individual cores and configuration can vary. The default configuration is to output non-scaled video in an RGBHV mode. MiSTer can be configured to enable scaling, output RGBs, RGsB or component as well over this port. Native resolutions here denote video signals generated by the core by default and may not match original hardware. Display output frequencies and resolutions tend to change over a core's development. Some cores output multiple resolutions and formats, which may require a more general classification.
-
-The primary display output of the DE10 nano is HDMI, so HDMI is often the initial target for video output in most cores.
+This is list is not to be taken as a literal hard authoritative source, it is community sourced and is a living document. If your core is not compatible with your display, then try other options, don't give up just because of this list.
 
 ## Table of cores and resolutions supported over the RGB/VGA output
 
@@ -139,8 +137,3 @@ The primary display output of the DE10 nano is HDMI, so HDMI is often the initia
 |Woodpecker|20180313|240p|15.86kHz, 60.6Hz||
 |Xevious|20180313|240p|15.86kHz, 60.6Hz||
 |ZigZag|20181219|240p|15.86kHz, 60.6Hz||
-
-TO-DO:   
-Declare specific resolution  
-Specify if PAL/NTSC alternate is available  
-Note is core expecting horizontal or vertical orientation