Small changes

docs_overrides/index.html

 <section id="download">
   <article>
     <h1>Download encantar.js</h1>
-    <p>encantar.js is a WebAR framework created independently by <a href="contact/" target="_blank" id="author-name" data-goatcounter-click>Alexandre Martins</a> and released as open source software. Users are asked to support the project. Get your copy and go build something magical with it! &#x1FA84;</p>
+    <p>encantar.js is a WebAR framework created independently by <a href="contact/" target="_blank" id="author-name" data-goatcounter-click>Alexandre Martins</a> and released as open source software under the GNU LGPL v3. Users are asked to support the project. Get your copy and go build something magical with it! &#x1FA84;</p>
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