assignment page format adjust

docs/assignments/index.md

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-|[![](../images/week01/projmgmt.png){ width=175 } Project management](../assignments/week01)|[![](../images/week02/digitalBodies.png){ width=175 } Digital bodies](../assignments/week02)|[![](../images/week03/circularfashion.png){ width=175 } Circular fashion](../assignments/week03)||[![](../images/week04/biochromes.png){ width=175 } Biochromes](../assignments/week04)|[![](../images/week05/etextiles.png){ width=175 }E-textiles](../assignments/week05)|[![](../images/week06/biomaterials.png){ width=175 } Biofabricating ](../assignments/week06)||[![](../images/week07/computeColture.png){ width=175 } Computational couture](../assignments/week07)|[![](../images/home/sample-image.jpg){ width=175 } Wearables ](../assignments/week08)|[![](../images/home/sample-image.jpg){ width=175 } Textile scaffold](../assignments/week09)||[![](../images/home/sample-image.jpg){ width=175 } Open-source hardware ](../assignments/week10)|[![](../images/home/sample-image.jpg){ width=175 } SoftRobotics](../assignments/week12)|[![](../images/week13/skinelectronics.png){ width=175 } Skin electronics](../assignments/week13)|
+|[![](../images/week01/projmgmt.png){ width=175 } Project management](../assignments/week01)|[![](../images/week02/digitalBodies.png){ width=175 } Digital bodies](../assignments/week02)|[![](../images/week03/circularfashion.png){ width=175 } Circular fashion](../assignments/week03)|
+|[![](../images/week04/biochromes.png){ width=175 } Biochromes](../assignments/week04)|[![](../images/week05/etextiles.png){ width=175 }E-textiles](../assignments/week05)|[![](../images/week06/biomaterials.png){ width=175 } Biofabricating ](../assignments/week06)|
+|[![](../images/week07/computeColture.png){ width=175 } Computational couture](../assignments/week07)|[![](../images/home/sample-image.jpg){ width=175 } Wearables ](../assignments/week08)|[![](../images/home/sample-image.jpg){ width=175 } Textile scaffold](../assignments/week09)|
+|[![](../images/home/sample-image.jpg){ width=175 } Open-source hardware ](../assignments/week10)|[![](../images/home/sample-image.jpg){ width=175 } SoftRobotics](../assignments/week12)|[![](../images/week13/skinelectronics.png){ width=175 } Skin electronics](../assignments/week13)|
 
 And in [week 11](../assignments/week11) I proposed my final project.