The tables in the Developer Guide (e.g. in section "17.1. Sending arguments to the build server") does not adapt to browser width on Safari on Mac

**Describe the bug**
This means you need to scroll sideways to see the full text of the build hint definitions which makes it difficult to read. 

 On Chrome all text is visible and wraps inside the columns (although the table stays quite narrow and does not adapt to use the full width of the browser window). 