Fix some external links (#3157)

[xehrad]

I agree. I had tried to arrange the list in alphabetical order.

json-enc converts an HTML form into a simple {input.name: input.value} map, whereas form-json allows input.name values containing . to be interpreted as paths for nested structures.
It also supports <input type="file">, converting file inputs to Base64-encoded data.

json-enc

<form hx-ext="json-enc">
  <input name="user.age" value="18" type=number" />
  <input type="file" name="document">
</form>

<!-- Submission:
{
  "user.age":  "18"
}
-->

form-json

<form hx-ext="form-json">
  <input name="user.age" value="18" type=number" />
  <input type="file" name="document">
</form>

<!-- Submission:
{
  "user":  {
    "age":  18
  },
  "document": {
    "type": "application/pdf",
    "name": "file.pdf",
    "body": "SSBtdXN0IG5vdCBmZWFyLlxuRmVhciBpcyB0aGUgbWluZC1raWxsZXIuCg=="
  }
-->

Checklist

• [*] I have read the contribution guidelines
• [*] I have targeted this PR against the correct branch (master for website changes, dev for
  source changes)
• [*] This is either a bugfix, a documentation update, or a new feature that has been explicitly
  approved via an issue
• [*] I ran the test suite locally (npm run test) and verified that it succeeded

[MichaelWest22]

Just noticed this extension we now link to happens to have an incompatible GPLv3 license which could cause legal issues for any user linking to it inside their project. @xehrad is there a reason this library has to be GPL? The vast majority of web development is not compatible with GPL licensed libraries. There is the LGPL which is better but it still has some unknowns and compliance issues. I would recommend re-licensing under a similar license to htmx like https://github.com/bigskysoftware/htmx/blob/master/LICENSE BSD-0 as this is much more friendly for web applications to consume.

[xehrad]

Just noticed this extension we now link to happens to have an incompatible GPLv3 license which could cause legal issues for any user linking to it inside their project. @xehrad is there a reason this library has to be GPL? The vast majority of web development is not compatible with GPL licensed libraries. There is the LGPL which is better but it still has some unknowns and compliance issues. I would recommend re-licensing under a similar license to htmx like https://github.com/bigskysoftware/htmx/blob/master/LICENSE BSD-0 as this is much more friendly for web applications to consume.

Thanks for catching this! You're right that GPLv3 could introduce compatibility issues for many users. I’ve gone ahead and changed the license to Zero-Clause BSD (0BSD), which aligns with htmx’s license and ensures maximum flexibility for web development.

Let me know if you have any other concerns!

[MichaelWest22]

@xehrad great thanks! I think your readme.md may need updating as well as you state the license in here as well