docs: Update README with TYPO3-specific instructions (#62)

* Update README.md

#61

* Update README.md

* Update README.md

* Update README.md

* Update README.md

Co-authored-by: Randy Fay <[email protected]>

---------

Co-authored-by: Randy Fay <[email protected]>

Author: glucka

README.md

@@ -179,6 +179,13 @@ Please see [Browsersync documentation](https://browsersync.io/docs) for more det
 This error usually occurs when the watcher server is not running.
 Run `ddev browsersync` to start the server.
 
+### Typo3 No site configuration found / 404 Error
+
+Solution: The base URL (`base` in the TYPO3 site's `config.yaml` (like `config/sites/main/config.yaml` should specify `http` even though the frontend is configured for `https`. This can also be solved by commenting out the default `base` line.
+```yaml
+base: http://examplehost.ddev.site/
+```
+
 ### Unknown command "browsersync" for "ddev"
 
 > :bulb: This add-on moves to a per-project command approach in v2.5.0+. You can safely delete the global `~/.ddev/commands/web/browsersync` once you’re on v2.5.0 or higher.