Update index.html

Author: nheider

docs/index.html

@@ -78,7 +78,7 @@
   <nav class="navbar" role="navigation" aria-label="main navigation">
     <div class="navbar-brand">
       <a class="navbar-item" href="https://github.com/SmartFarmingLab/field_dataset_survey">
-        <strong>🌾Field Dataset Survey</strong>
+        <strong>🌾 Field Dataset Survey</strong>
       </a>
     </div>
   </nav>