Added initial stab at figures and image widths plugin.

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Updated to cope with multiple images and figures, and to deal with indivdual images.

Also renamed and updated readme.

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Added TODO

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Added test .rst file and a screenshot of output

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Added dummy test images

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Renamed test/ to test_data/

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Added HTML to test_data

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Added TODO

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Added height: auto

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Added suuport for responsive images; added initial support for SVG

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>
Added fixing alt text; updated readme

Signed-off-by: Duncan Lock <duncan.lock@gmail.com>