Similar case, but showing a source file of Dill in GitHub using the raw view
https://cdn.fosstodon.org/media_attachments/files/113/727/599/056/179/743/original/891ed6eb404eb7e6.png
Now you can link to an specific line in a plain text file adding a line fragment like #L123. Not sure why this is not more common.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.