diff --git a/src/bin/dosh b/src/bin/dosh
index d48327b..334e1a2 100755
--- a/src/bin/dosh
+++ b/src/bin/dosh
@@ -4,10 +4,15 @@
 
 let base_url = 'https://cdn.jsdelivr.net/npm/@fawazahmed0/currency-api@latest/v1'
 
-def main [target:string = "usd", source:string = "eur"] {
+# Convert one unit of a currency to another using the following API:
+# https://github.com/fawazahmed0/exchange-api
+def main [target:string = "usd" # Unit of curency to convert to
+          source:string = "eur" # Base currency to convert from
+					] {
 	$"((http get $"($base_url)/currencies/($source).json") | get $source | get $target)\n"
 }
 
+# Lists all available currencies
 def "main list" [ ] {
 	http get $"($base_url)/currencies.json"
 }