add Margrie as a contributor for content

[allcontributors]

Adds @Margrie as a contributor for content.

This was requested by sspencerwire in this comment

[skip ci]

[github-actions]

Test results for fd81f43:

Number of broken URLs: 12

URL,RESULT,FILENAME
 http://$(hostname):8080,failed,guides/repositories/pulp_fetch_upload.md
 http://your_ip,failed,guides/cms/mediawiki.md
 https://dl.rockylinux.org/pub/rocky/9.6/live/x86_64/,failed,guides/desktop/kde_installation.md
 https://help.mikrotik.com/docs/display/ROS/Cloud+Hosted+Router%2C+CHR,failed,guides/network/accel-ppp_pppoe_server.md
 https://ftp.gnu.org/gnu/tar/,failed,guides/backup/tar.md
 https://support.torproject.org/glossary/pluggable-transports/,failed,guides/proxies/tor_relay.md
 https://andyscott.me,failed,guides/contribute/README.md
 https://git.launchpad.net/cloud-init,failed,guides/virtualization/cloud-init/07_contributing.md
 https://ftp.gnu.org/gnu/hello/hello-2.12.tar.gz,failed,labs/systems_administration_I/lab7-software_management.md
 https://repocompare.rockylinux.org,failed,release_notes/8_5.md
 https://mirrors.fedoraproject.org/metalink?repo=epel-8&arch=$basearch&infra=$infra&content=$contentdir,failed,books/admin_guide/13-softwares.md
 https://dotfyle.com/,failed,books/nvchad/plugins/index.md