Add more example and pip install commands to README.md

[dinhanhx]

For example section, the following code can be added to demonstrate how to convert a svg file to a Pillow Image object

Example svg file: https://upload.wikimedia.org/wikipedia/commons/4/4f/SVG_Logo.svg

from svglib.svglib import svg2rlg
from reportlab.graphics import renderPM
from PIL import Image
import io

drawing = svg2rlg("SVG_Logo.svg")
place_holder = io.BytesIO()
renderPM.drawToFile(drawing, place_holder, fmt="PNG")

image = Image.open(place_holder)
image.show()

For pip install section, I believe it would be better if this was added

pip install svglib rlPyCairo reportlab

So other people can have quick installation without fixing missing dependencies.

[github-actions[bot]]

Thank you for raising your first issue! Your help to improve svglib is much appreciated!

[claudep]

Thanks for this suggestion, would you like to create a pull request with this snippet?

[dinhanhx]

I believe it would be better if you do that because you might want to edit the suggested examples.

[deeplook]

We can easily adjust it after you add a contribution to this package and your own list. ;-)