Fix broken references (#1868)

* Fix broken references
- `link.svg`
- `_inc/_install-browser-reqs-volto.md`

* Fix linkcheck to bobtemplates

* Update tip submodules/volto

* Fix link

Author: stevepiercy

docs/_inc/_install-browser-reqs-volto.md

@@ -137,7 +137,7 @@ Alternatively you can implement it in your own templates by adding the CSS class
 
 ## References
 
--   [`bobtemplates.plone` documentation](https://bobtemplatesplone.readthedocs.io/en/latest/)
+-   [`bobtemplates.plone` documentation](https://bobtemplatesplone.readthedocs.io/)
 -   [`mr.bob` documentation](https://mrbob.readthedocs.io/en/latest/)
 -   [Plone CLI documentation](https://plonecli.readthedocs.io/en/latest/)
 -   [`bobtemplates.plone` repository](https://github.com/plone/bobtemplates.plone)

docs/classic-ui/mockup.md

@@ -35,7 +35,10 @@ Plone 6 has both hardware requirements and software prerequisites.
 
 ### Supported web browsers
 
-```{include} /_inc/_install-browser-reqs-volto.md
+```{include} /volto/_inc/_install-browser-reqs-volto.md
+```
+
+```{include} /_inc/_install-browser-reqs-classic-ui.md
 ```
 
 

docs/install/create-project-cookieplone.md

@@ -32,7 +32,7 @@ Plone 6.0 has both hardware requirements and software prerequisites.
 
 ### Supported web browsers
 
-```{include} /_inc/_install-browser-reqs-volto.md
+```{include} /volto/_inc/_install-browser-reqs-volto.md
 ```
 
 ```{include} /_inc/_install-browser-reqs-classic-ui.md