✨ add rshmhrj.io GTMetrix to sites.yml

[rshmhrj]

This PR is:

• Adding a new domain
• Updating existing domain size
• Changing domain name
• Removing existing domain from list
• Website code changes (512kb.club site)
• Other not listed

• I used the uncompressed size of the site
• I have included a link to the GTMetrix report
• The domain is in the correct alphabetical order
• This site is not a ultra lightweight site
• The following information is filled identical to the data file

I confirm that I have read the FAQ section, particularly the two red items around minimal pages and inappropriate content and I attest that this site is neither of these things.

• Check to confirm

- domain: rshmhrj.io
  url: https://rshmhrj.io/
  size: 170
  last_checked: 2023-07-11

GTMetrix Report: https://gtmetrix.com/reports/rshmhrj.io/mPr4FHtr/

• 82.5KB (170KB Uncompressed)
• 

[garritfra]

Thanks!