updated images readme

Author: itzandroidtab

readme.md

@@ -10,14 +10,14 @@ Open source hardware TOTP token. Currently targets the LPC1756, LPC1758 and LPC1
 
 ### Images
 Photos
-![](img/totp_test.jpg =500x500)
-![](img/full_front0.jpg =500x500)
-![](img/case.jpg =500x500)
+<img src='img/totp_test.jpg' width='500')
+<img src='img/full_front0.jpg' width='500')
+<img src='img/case.jpg' width='500')
 
 PCB
-![](img/pcb.jpg =500x500)
-![](img/lpc1756_totp.png =500x500)
-![](img/lpc1756_totp_back.png =500x500)
+<img src='img/pcb.jpg' width='500')
+<img src='img/lpc1756_totp.png' width='500')
+<img src='img/lpc1756_totp_back.png' width='500')
 
 Additional pictures can be found [here](./img/)