Update external/lab/lab-coats/lab-coats.md, external/lab/lab-coats/img/2.jpg files

Deleted external/lab/lab-coats/img/3.png, external/lab/lab-coats/img/2.png files

external/lab/lab-coats/lab-coats.md

@@ -4,4 +4,12 @@ Which lab coat should I wear? Where do I get a new lab coat and where do I dispo
 
 ## 1.	Wear the right lab coat in the right area
 
-![1](img/1.png)
+<div align="center">
+<img src="img/1.png">
+</div>
+
+### Lab coat mandatory
+
+<div align="left">
+<img src="img/2.png">
+</div>