Update file index.md

docs/index.md

@@ -24,17 +24,30 @@ With that, materials present a crucial step in overcoming environmental challeng
 
 **THE CONTINUATION OF BIOMATERIAL RESEARCH AND APPLICATIONS**
 
-![Biomaterial prototypes](./images/home/PROTO_1.jpg){ width=800 align=center }
+![Biomaterial prototypes](./images/home/PROTO_1.jpg){ width=500 align=center }
 
-![Material research](./images/home/pena_research.png){ width=800 align=center }
 
-![](./images/home/pena_posodica.png){ width=800 align=center }
+<figure markdown>
+  ![](../images/home/PROTO_1.jpg){ width=500 align=center }
+  <figcaption>Biomaterial prototypes</figcaption>
+</figure>
 
-![](./images/home/skreb_vreca.png){ width=800 align=center }
 
-![](./images/home/pena_embala.png){ width=800 align=center }
+![Material research](./images/home/pena_research.png){ width=500 align=center }
 
-![](./images/home/pena_bob.png){ width=800 align=center }
+<figure markdown>
+  ![](../images/home/pena_research.png){ width=500 align=center }
+  <figcaption>Biomaterial research</figcaption>
+</figure>
+
+
+![](./images/home/pena_posodica.png){ width=500 align=center }
+
+![](./images/home/skreb_vreca.png){ width=500 align=center }
+
+![](./images/home/pena_embala.png){ width=500 align=center }
+
+![](./images/home/pena_bob.png){ width=500 align=center }