Add LLMs.txt to Strapi v3 docs (#2725)

* Add LLMs.txt

* Add link to LLMs.txt

* Fix llms.txt link

Author: pwizla

docs/.vuepress/config.js

@@ -628,6 +628,10 @@ module.exports = {
           },
         ],
       },
+      {
+        text: 'LLMs.txt',
+        link: '/llms.txt',
+      },
       {
         text: 'v4 Documentation',
         link: 'https://docs.strapi.io'
@@ -684,10 +688,6 @@ module.exports = {
           },
         ],
       },
-      {
-        text: "We're hiring!",
-        link: 'https://strapi.io/careers#open-positions',
-      },
     ],
     repo: 'strapi/documentation',
     docsDir: 'docs',