Merge pull request #1248 from metabase/ops_and_admin_guide_cleanup

docs/README.md

docs/administration-guide/01-managing-databases.md

docs/administration-guide/05-application-data.md

docs/administration-guide/07-common-problems.md

docs/administration-guide/start.md

docs/frequently-asked-questions/questions.md

docs/installation-guide/01-overview.md

docs/installation-guide/02-running-metabase.md

docs/installation-guide/03-connecting-databases.md

docs/installation-guide/start.md

docs/operations-guide/backing-up-the-metabase-database.md

docs/operations-guide/installing-on-elastic-beanstalk.md

docs/operations-guide/running-metabase-on-docker.md

docs/operations-guide/running-the-metabase-jar-file.md

docs/operations-guide/start.md