Update text references to clarify JSON input for chat-generated activities

Author: alekswebnet

src/h5p/build/index.njk

@@ -45,7 +45,7 @@ csp: "default-src 'self'; script-src 'self'; style-src 'self'; img-src 'self' da
         </p>
         <div class="hero-actions when-unlinked">
           <a class="button button-solid button-large" href="#make">Make your own</a>
-          <a class="button button-large" href="#build-it">Paste what your chat wrote</a>
+          <a class="button button-large" href="#build-it">Paste your chat's JSON</a>
         </div>
         <p class="lead when-linked">The link you opened carries an activity an AI chat wrote.</p>
         <p class="when-linked">
@@ -123,7 +123,7 @@ csp: "default-src 'self'; script-src 'self'; style-src 'self'; img-src 'self' da
         </li>
         <li>
           <h3>Play it, then download it</h3>
-          <p>It hands over a link that opens the activity here, or its source, a short text to paste under <a href="#build-it">Build it</a>. Some chats build the <code>.h5p</code> file themselves.</p>
+          <p>It hands over a link that opens the activity here, or its source, a block of JSON to paste under <a href="#build-it">Build it</a>. Some chats build the <code>.h5p</code> file themselves.</p>
         </li>
       </ol>
       <div class="prompt-box">
@@ -143,7 +143,7 @@ csp: "default-src 'self'; script-src 'self'; style-src 'self'; img-src 'self' da
     <div class="wrap">
       <header class="band-head">
         <h2 id="build-it-heading">Build it</h2>
-        <p class="when-unlinked">Paste what your chat wrote, build it, play it, and download the <code>.h5p</code> file.</p>
+        <p class="when-unlinked">Paste the JSON your chat wrote, build it, play it, and download the <code>.h5p</code> file.</p>
       </header>
 
       <section class="step" aria-labelledby="source-heading">