docs(README): add note about font metrics

README.md

@@ -122,19 +122,18 @@ The SVG generated by Termsnap makes assumptions about the metrics of the font
 used for text rendering. Specifically, the font's character advance, line
 height and descent metrics are used to determine how to lay out the terminal's
 cells in the generated SVG. The default metrics can be overriden by passing
-`--font-<metric>` arguments to termsnap. The font is not embedded and the text
-not converted to paths. If the client rendering the SVG can't find the
-specified font, the SVG may render incorrectly, especially if the metrics of
-the font used for rendering vary signficantly from the metrics used to generate
-the SVG.
-
-You can use, e.g., Inkscape to convert the text to paths---the downside is the
-text may lose crispness when rendering at low resolutions. You can also convert
-the SVG to a raster image.
-
-You can use the CLI program [font-info](https://github.com/tomcur/font-info) to
-determine the metrics of the font you want to use. Alternatively, you can use
-the font editor [Fontforge](https://github.com/fontforge/fontforge).
+`--font-{advance,line-height,descent}` arguments to Termsnap. You can use the
+CLI program [font-info](https://github.com/tomcur/font-info) to determine the
+metrics of the font you want to use. Alternatively, you can use the font editor
+[Fontforge](https://github.com/fontforge/fontforge).
+
+The font is not embedded and the text not converted to paths. If the client
+rendering the SVG can't find the specified font, the SVG may render
+incorrectly, especially if the metrics of the font used for rendering vary
+signficantly from the metrics used to generate the SVG. You can use, e.g.,
+Inkscape to convert the text to paths---the downside is the text may lose
+crispness when rendering at low resolutions. You can also convert the SVG to a
+raster image.
 
 ```bash
 # Text to path