[Improvement] Visual Changes in Supply Chain Education Leaflet #85

Describe the improvement

https://github.com/OpenChain-Project/Reference-Material/blob/master/Education-For-Suppliers/Supplier-Education-Leaflet/supply-chain-education-leaflet-version-2-2024/supply-chain-education-leaflet-version-2_en.pdf

pg. 3 under the heading "Definition of open source"
The links https://opensource.org/licenses https://opensource.org/osd (Open Source Definition) are visually hard to distinguish from another. A suggestion is to increase the gap between the links or stack them.

Open Source Definition: https://opensource.org/osd
OSI Approved Licenses: https://opensource.org/licenses

Another visual improvement is to make the call to action on pg. 10 under the heading "Supply Chain issues" stand out more.
As this would call to action to get certified most likely be shown to upper management making this an attention grabber in a leaflet is key. My suggestion is in some way make it pop visually from the page.