cavif: improve page (#12274)

pages/common/cavif.md

@@ -1,21 +1,21 @@
 # cavif
 
-> PNG/JPEG to AVIF converter. Written in Rust.
+> Convert PNG/JPEG images to AVIF. Written in Rust.
 > See also: `convert`.
 > More information: <https://github.com/kornelski/cavif-rs>.
 
 - Convert a JPEG file to AVIF, saving it to `file.avif`:
 
-`cavif {{path/to/file.jpg}}`
+`cavif {{path/to/image.jpg}}`
 
-- Adjust the image quality (1-100) and convert a PNG file to AVIF:
+- Adjust the image quality and convert a PNG file to AVIF:
 
-`cavif --quality {{60}} {{path/to/file.png}}`
+`cavif --quality {{1..100}} {{path/to/image.png}}`
 
 - Specify the output location:
 
-`cavif {{path/to/file.jpg}} --output {{path/to/file.avif}}`
+`cavif {{path/to/image.jpg}} --output {{path/to/output.avif}}`
 
 - Overwrite the destination file if it already exists:
 
-`cavif --overwrite {{path/to/file.jpg}}`
+`cavif --overwrite {{path/to/image.jpg}}`