Hugo self generates a config.toml when “hugo sitenew” is issued.
I edited the title line.
title = "My New Hugo SiteZ"
While watching the bash window which is running
[root@fedora28 example.com]# /usr/local/bin/hugo server
| EN
+------------------+----+
Pages | 3
Paginator pages | 0
Non-page files | 0
Static files | 1
Processed images | 0
Aliases | 0
Sitemaps | 1
Cleaned | 0
Total in 6 ms
Watching for changes in /home/ktst/huskel/example.com/{content,data,layouts,static}
Watching for config changes in /home/ktst/huskel/example.com/config.toml
Serving pages from memory
Running in Fast Render Mode. For full rebuilds on change: hugo server --disableFastRender
Web Server is available at http://localhost:1313/ (bind address 127.0.0.1)
Press Ctrl+C to stop
Change detected, rebuilding site
2018-09-11 12:48:19.158 -0400
Total in 19 ms