Fix install instrux about 2 directories at start of topic
Fix code formatting
Hot fix: add xdebug issue to Release Notes
Merge remote-tracking branch 'origin/DevDocs-19-M8' into DevDocs-19-M8
Merge remote-tracking branch 'origin/develop' into DevDocs-19-M8
Fix issue with comments appearing in output
Merge branch 'develop' of https://github.com/magento/devdocs into DevDocs-19-M8

Conflicts:
	guides/v1.0/architecture/modules/mod_depend.md