The ROCm documentation on the readthedocs io site is written in reStructuredText (.rst).
It is compiled and uses the readthedocs sitewide theme.css.
The theme.css is designed to be responsive to varying browser size, but does not work well for wide tables and images. The content column is too narrow, and the table cell text lines do not wrap.
It appears to be an old problem, so it may be unlikely to change in general, though it looks like there are ways for doc developers to override it. https://github.com/readthedocs/sphinx_rtd_theme/issues/117
One way to workaround it is to disable a couple of the css rules, either automatically with a userstyle, or manually.
One approach is to use a browser add-on like Stylus or Stylish to make these overrides automatically.
Two userstyles are helpful:
1. Load page in browser, say
https://rocm-documentation.readthedocs.io/en/latest/GCN_ISA_Manuals/testdocbook.html
2. Press the F12 key on the keyboard to open the browser's developer pane.
(By default the developer pane is usually docked to the bottom of the
browser window, so the full width the content pane is visible.)
3. To disable content column width limit:
.wy-nav-content {
}
4. To enable table content line wrapping:
.wy-table-responsive table td, .wy-table-responsive table th {
}