Update alginatenet.md

docs/files/recipes/alginatenet.md

@@ -6,7 +6,7 @@
 
 ### Description
 
-a cotton and alginate-based composite with open structure, molded onto a half dome shape
+a cotton/wool and alginate-based composite with open structure, molded onto a half dome shape
 
 ### Physical form
 
@@ -35,7 +35,7 @@ Final form achieved after: 7 days
 	* optional: use a (diluted) natural dye instead for a colored plastic
 * **Sunflower oil - 5 gr**
 	* filler to reduce shrinkage
-* **Yarn - cotton, 2 metres** 
+* **Yarn - cotton/wool mix, 2 metres** 
     * to create the net
 * **Calcium chloride solution 10% (10 gr to 100 gr water)**
     * is the curing agent: calcium chloride attracts moisture very strongly: spraying it onto the alginate plastic starts the curing process.