Update default.html

Author: sichkar-valentyn

docs/_layouts/default.html

@@ -28,7 +28,7 @@
     <div id="header_wrap" class="outer">
         <header class="inner">
           <a id="forkme_banner" href="https://github.com/sichkar-valentyn/Reinforcement_Learning_in_Python">View on GitHub</a>
-          <img src="/Reinforcement_Learning_in_Python/images/Valentyn-Sichkar.png" alt="Valentyn Sichkar" width="150" height="150" />
+          <img src="/Reinforcement_Learning_in_Python/images/Valentyn-Sichkar.png" alt="Valentyn Sichkar" width="100" height="100" />
 
           <h1 id="project_title">Reinforcement Learning in Python</h1>
           <h2 id="project_tagline">Implementing Reinforcement Learning, namely Q-learning and Sarsa algorithms, for global path planning of mobile robot in unknown environment with obstacles. Comparison analysis of Q-learning and Sarsa</h2>
@@ -38,6 +38,9 @@ <h2 id="project_tagline">Implementing Reinforcement Learning, namely Q-learning
     </div>
 
     <!-- MAIN CONTENT -->
+    <div>
+      <img src="/Reinforcement_Learning_in_Python/images/Valentyn-Sichkar.png" alt="Valentyn Sichkar" width="150" height="150" />
+    </div>
     <div id="main_content_wrap" class="outer">
       <section id="main_content" class="inner">
         <h1 id="reinforcement-learning-in-python">Reinforcement Learning in Python</h1>