Adjust name from "data-lucide-name" to "data-lucide" in documentation & vitepress config adjusted (#1551)

* adjusted name

* adjusted vitepress config and README file

* use glob pattern

---------

Co-authored-by: Eric Fennis <[e-mail]>

docs/.vitepress/config.ts

···
   description,
   cleanUrls: true,
   outDir: '.vercel/output/static',
+  srcExclude: ['**/README.md'],
   vite: {
     resolve: {
       alias: [

docs/.vitepress/lib/createCodeExamples.ts

···
       codes: [
         {
           language: 'html',
-          code: `<i data-lucide-name="Name"></i>
+          code: `<i data-lucide="Name"></i>
 `,
         },
       ],

docs/README.txt docs/README.md

···
 The Lucide docs website is built with Vitepress: https://vitepress.dev/
 This is Markdown-based documentation powered by Vue.
 
-This is why this file is in txt format.
-
 ## Development
 
 ```sh