Update README.md

README.md

@@ -4,4 +4,33 @@ Simple extension to easily maintain aspect ratio while changing dimensions.
 
 Install via the extensions tab on the [AUTOMATIC1111 webui](https://github.com/AUTOMATIC1111/stable-diffusion-webui).
 
+## Main features:
 
+- Scale to maximum width or dimension
+  - Upon clicking, the dimensions will scale the highest value to the maximum configured value
+  - Aspect ratio will be maintained, the smaller or equivalent value will be scaled to match
+- Scale by percentage
+  - Upon clicking, the current dimensions will be multiplied by the given percentage, with aspect ratio maintained
+  - i.e `150% of 512x512 = 768x768` `75% of 512x256 = 384x192` etc.
+
+Screenshot:
+
+![user-interface.png](docs%2Fuser-interface.png)
+
+## Settings:
+
+- Expand by default
+  - Determines whether the 'Aspect Ratio Helper' accordion expands by default
+- Show maximum width of height button
+  - Self-explanatory
+- Maximum width or height default
+  - Self-explanatory
+- Show percentage buttons
+  - Self-explanatory
+- Percentage buttons
+  - Comma separated list of percentages
+  - i.e `25, 50, 75, 125, 150, 175, 200` `50, 125, 300` etc.
+
+Screenshot:
+
+![settings.png](docs%2Fsettings.png)