Remove GIF advanced options from docs

docs/configuration.md

@@ -134,10 +134,10 @@ When cookie forwarding is activated, by default, imgproxy assumes the scope of t
 * `IMGPROXY_PNG_QUANTIZE`: when true, enables PNG quantization. libvips should be built with [Quantizr](https://github.com/DarthSim/quantizr) or libimagequant support. Default: `false`
 * `IMGPROXY_PNG_QUANTIZATION_COLORS`: maximum number of quantization palette entries. Should be between 2 and 256. Default: 256
 
-### Advanced GIF compression
+<!-- ### Advanced GIF compression
 
 * `IMGPROXY_GIF_OPTIMIZE_FRAMES`: <i class='badge badge-pro'></i> when true, enables GIF frame optimization. This may produce a smaller result, but may increase compression time.
-* `IMGPROXY_GIF_OPTIMIZE_TRANSPARENCY`: <i class='badge badge-pro'></i> when true, enables GIF transparency optimization. This may produce a smaller result, but may also increase compression time.
+* `IMGPROXY_GIF_OPTIMIZE_TRANSPARENCY`: <i class='badge badge-pro'></i> when true, enables GIF transparency optimization. This may produce a smaller result, but may also increase compression time. -->
 
 ### Advanced AVIF compression
 

docs/generating_the_url.md

@@ -433,7 +433,7 @@ Places a watermark on the processed image.
   * `nowe`: north-west (top-left corner)
   * `soea`: south-east (bottom-right corner)
   * `sowe`: south-west (bottom-left corner)
-  * `re`: repeat and tile the watermark to fill the entire image 
+  * `re`: repeat and tile the watermark to fill the entire image
 * `x_offset`, `y_offset` - (optional) specify watermark offset by X and Y axes. When using `re` position, these values define the spacing between the tiles.
 * `scale`: (optional) a floating-point number that defines the watermark size relative to the resultant image size. When set to `0` or when omitted, the watermark size won't be changed.
 
@@ -558,14 +558,14 @@ pngo:%interlaced:%quantize:%quantization_colors
 
 Allows redefining PNG saving options. All arguments have the same meaning as with the [Advanced PNG compression](configuration.md#advanced-png-compression) configs. All arguments are optional and can be omitted.
 
-### GIF options<i class='badge badge-pro'></i> :id=gif-options
+<!-- ### GIF options<i class='badge badge-pro'></i> :id=gif-options
 
 ```
 gif_options:%optimize_frames:%optimize_transparency
 gifo:%optimize_frames:%optimize_transparency
 ```
 
-Allows redefining GIF saving options. All arguments have the same meaning as with the [Advanced GIF compression](configuration.md#advanced-gif-compression) configs. All arguments are optional and can be omitted.
+Allows redefining GIF saving options. All arguments have the same meaning as with the [Advanced GIF compression](configuration.md#advanced-gif-compression) configs. All arguments are optional and can be omitted. -->
 
 ### Format