Update 4 files

- /docs/assignments/week04.md
- /docs/images/week04/41.jpg
- /docs/images/week04/42.jpg
- /docs/images/week04/43.jpg

docs/assignments/week04.md

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 # 04 **BIOCHROMES**
 
+![studio](../images/week04/41.jpg){ width=1000}
+*Preparations*
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+![fabrics](../images/week04/42.jpg){ width=1000}
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  **Scouring Cellulose Fabics**
 
 1. Put linen into a large pot of water.
-2. Add 5.7g(10%) of soda for 57g of linen
-3. Simmer for approximately 1hr to fully remove any wax, pectic substances, and oil. (The resulting water may look yellow brown)
+2. Add 5.7g(10%) of soda for 57g of linen.
+3. Simmer for approximately 1hr to fully remove any wax, pectic substances, and oil. Stir occationally. (The resulting water may look yellow brown.)
 4. Allow fibre to cool down slowly and then rinse in hot water.
 
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+**Mordanting**
 
  
 
 
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+![dyepots](../images/week04/43.jpg){ width=1000}
 ## **Bacteria Dye**