Setup NIP5 verification using Github Pages

"NIP5: Mapping Nostr keys to DNS-based internet identifiers"

Buy a domain 😅 如【 nostrurl.com 】Setup Domain DNS records to point to GitHub Pages:

| Type | Host           | Answer          | TTL | Priority |
|------|----------------|-----------------|-----|----------|
www| A  |  nostrurl.com | 185.199.109.153 | 300 |          |
@| A    |  nostrurl.com | 185.199.108.153 | 300 |          |
*| A    |  nostrurl.com | 185.199.109.153 | 300 |          |

Create a new github repo github.com/new
Create a new file [YOUR-REPO]/.well-known/nostr.json 如：nostr.json

Edit nostr.json to reflect desired Nickname and YOUR pub key (hex format) this content:

{
  "names": {
    "cndx": "d34110060782337c8864ff76321a821f2dbbcfb0bb33864b1cc48712abd84a80"
  }
}

Create a new file in the root folder [YOUR-REPO]/_config.yml and add this line
```
include: [".well-known"]
```
Navigate to github.com/[USER]/[YOUR-REPO]/settings/pages
Under "Build and deployment" select "Deploy from branch" then below select branch "Main /(root)"
Under "Custom domain" type your naked nostrurl.com (github might complain, ignore)
Below it, check Enforce HTTPS. Sometimes this may take a few minutes to be available.
Then head over iris.to/profile/edit or astral.ninja/settings (or other) edit the NIP-05 Indentifier field to reflect "cndx@nostrurl.com" and press Save
You are all set now, enjoy the vanity address.