add missing vitamins, minor tweak to peristaltic pump

This compiles, try:
`$ cargo run -- --repo ../modular-recipes/recipes/ peristaltic_pump`

modular-recipes/recipes/purchase/m4_washer.toml

@@ -0,0 +1,14 @@
+[outputs.m4_washer]
+quantity=100
+comments = "4.4 mm ID, 8.8 mm OD, 0.8 mm thick"
+
+[inputs]
+capital={amount="7.18 usd"}
+
+[dependencies]
+operator = {skills=["vendor interaction"]}
+
+[action.purchase]
+vendor = [
+    "https://www.ebay.com/itm/116208880905?var=416418468720"
+]