[TASK] Use actual Netresearch logo SVG instead of text placeholder

Author: CybotTM

docs/index.html

@@ -377,8 +377,12 @@
     <header>
         <div class="container">
             <div class="header-content">
-                <svg class="logo" viewBox="0 0 100 100" fill="white">
-                    <text x="50" y="70" font-size="60" font-family="Raleway, sans-serif" font-weight="800" text-anchor="middle">[n]</text>
+                <svg class="logo" viewBox="-75 -75 440 440" xmlns="http://www.w3.org/2000/svg">
+                    <title>Netresearch DTT GmbH</title>
+                    <g>
+                        <path fill="#ffffff" d="M209.6,0V31.62h32.77a26.38,26.38,0,0,1,26.44,26.43V242a26.38,26.38,0,0,1-26.44,26.44H209.6V300h47.93a42.77,42.77,0,0,0,42.86-42.86V42.89A42.76,42.76,0,0,0,257.53,0ZM43.25,0A42.76,42.76,0,0,0,.39,42.89V257.18A42.76,42.76,0,0,0,43.25,300H91.18V268.46H58.4A26.38,26.38,0,0,1,32,242v-184A26.37,26.37,0,0,1,58.4,31.62H91.18V0Z" transform="translate(-0.39 -0.04)" />
+                        <path fill="#ffffff" opacity="0.8" d="M221.44,120.41c0-34.48-13.94-57.82-48.93-57.82-26.62,0-48.54,7.74-64.17,26.56l-.7-22.06-28.31.06V232.94h31.59V124.69c7.14-18.38,32.14-34.8,53-34.5,27.38.4,25.2,26.24,26,45.81v96.94h31.58" transform="translate(-0.39 -0.04)" />
+                    </g>
                 </svg>
                 <div>
                     <h1>TYPO3 Render Guides Performance Report</h1>