[Libre-soc-dev] Wiki constrain image size

[Cole Poirier]

Hi Luke,

I've added a section to HDL_workflow/coriolis2 documenting how to use
the soclayout repo to layout example9 (as an example). As a part of
this I linked to the image 180nm_Oct2020/2020-07-03_11-04.png as an
example of what the end result should look like. Unfortunately it
appears HUGE on the page. What is the way that our ikwiki expects
image size constraints to be expressed in? I searched but found a
dozen conflicting ways to do this, and I didn't want to pollute the
libreriscv repo with a bunch of commits trying to figure out how to do
this.

Cole