Add example of left aligning title with axis line via frame=group

[joelostblom]

What is your suggestion?

I didn't know about frame='group' until vega/vega#3903. I have been avoiding using left aligned titles because I don't like the aesthetics of them going past the y-axis line. Now that's no longer an issue and it looks so great when it's aligned with the axis line:

import altair as alt
from vega_datasets import data


source = data.movies.url

title = alt.Title('A title for my histogram', anchor='start')
chart = alt.Chart(source, title=title, height=200).mark_bar().encode(
    alt.X("IMDB_Rating:Q", bin=True),
    y='count()',
)

title2 = alt.Title('A title for my histogram', anchor='start', frame='group')

chart | chart.properties(title=title2)

Have you considered any alternative solutions?

No response