Fix image links

Author: corraid

docs/index.html

@@ -5,7 +5,7 @@
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width,
       initial-scale=1.0, user-scalable=yes">
-    <title>readme</title>
+    <title>cmon-pid</title>
     <script>
 	MathJax = {
 		loader: {load: ['input/asciimath']},
@@ -268,16 +268,16 @@ <h3 id="SimBackcalc">Back-calculation</h3>
       <p><img src="images/sim_backcalc_ti.png" width=100%></p>
       <h3>Disturbance with `Ti=2`</h3>
       To improve the disturbance rejection the integration time can be reduced to 2.
-      <p><img src="images/sim_ti2_disturbance.png" width=100%></p>
+      <p><img src="images/sim_Ti2_disturbance.png" width=100%></p>
 
       <h3>Clamping with `Ti=2`</h3>
       This also improves the recovery after the output has been clamped.
-      <p><img src="images/sim_ti2_clamping.png" width=100%></p>
+      <p><img src="images/sim_Ti2_clamping.png" width=100%></p>
 
 
       <h3>Step response with `Ti=2`</h3>
       Tracking performance is reduced though.
-      <p><img src="images/sim_ti2.png" width=100%></p>
+      <p><img src="images/sim_Ti2.png" width=100%></p>
 
   </body>
 </html>