[Doc] The Getting Started part is outdated in vxrn

[alantoa]

I''m following the official documentation of vxrn, trying to create a minimal example, but it is not working.
Then I realized that this is because the website has not been updated yet.

It should be npm create vxrn@latest or npx create-vxrn@latest.

➜  workspace npx create vxrn@latest

file:///Users/alantoa/.npm/_npx/0ba4002b88dd17fc/node_modules/create/lib/cli/runCli.js:13
        throw new Error(`Could not import ${templateSource}.`, {
              ^

Error: Could not import create-vxrn@latest.
    at runCli (file:///Users/alantoa/.npm/_npx/0ba4002b88dd17fc/node_modules/create/lib/cli/runCli.js:13:15)
    at async file:///Users/alantoa/.npm/_npx/0ba4002b88dd17fc/node_modules/create/bin/index.js:4:20 {
  [cause]: Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'create-vxrn@latest' imported from /Users/alantoa/.npm/_npx/0ba4002b88dd17fc/node_modules/create/lib/cli/runCli.js
      at packageResolve (node:internal/modules/esm/resolve:854:9)
      at moduleResolve (node:internal/modules/esm/resolve:927:18)
      at defaultResolve (node:internal/modules/esm/resolve:1169:11)
      at ModuleLoader.defaultResolve (node:internal/modules/esm/loader:542:12)
      at ModuleLoader.resolve (node:internal/modules/esm/loader:510:25)
      at ModuleLoader.getModuleJob (node:internal/modules/esm/loader:239:38)
      at ModuleLoader.import (node:internal/modules/esm/loader:472:34)
      at defaultImportModuleDynamicallyForModule (node:internal/modules/esm/utils:214:31)
      at importModuleDynamicallyCallback (node:internal/modules/esm/utils:253:12)
      at tryImport (file:///Users/alantoa/.npm/_npx/0ba4002b88dd17fc/node_modules/create/lib/cli/runCli.js:43:9) {
    code: 'ERR_MODULE_NOT_FOUND'
  }
}

Node.js v20.18.1

[natew]

Ah yea, vxrn docs are mostly not updated for a long time, and I think we need to fix it deploying properly again.