Change default log configuration (#13088)

* Change default log configuration

This PR changes the install page and the docker default
logging configuration to match the suggested configuration
that I repeatedly end up suggesting on issues.

It further improves the logging configuration docs to
recommend specific instructions for how to configure logs
for posting to issues.

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Update docs/content/doc/advanced/logging-documentation.en-us.md

docker/root/etc/templates/app.ini

@@ -29,6 +29,7 @@ HOST    = $DB_HOST
 NAME    = $DB_NAME
 USER    = $DB_USER
 PASSWD  = $DB_PASSWD
+LOG_SQL = false
 
 [indexer]
 ISSUE_INDEXER_PATH = /data/gitea/indexers/issues.bleve
@@ -44,6 +45,11 @@ REPOSITORY_AVATAR_UPLOAD_PATH = /data/gitea/repo-avatars
 PATH = /data/gitea/attachments
 
 [log]
+MODE = console
+LEVEL = info
+REDIRECT_MACARON_LOG = true
+MACARON = console
+ROUTER = console
 ROOT_PATH = /data/gitea/log
 
 [security]