Simplified example script and added note to fset docs

Author: robreid

README.md

@@ -162,7 +162,7 @@ Note that the apostrophes will wrap the string, turning it into a database strin
 Generates a formatted string using placeholder syntax:
 
 ```
-'{{stringf "%s.%[email protected]" 5 10 "abc" 10000 20000}}',
+'{{stringf "%s.%[email protected]" 5 10 "abc" 10000 20000}}'
 ```
 
 `stringf` the name of the function.<br/>
@@ -264,7 +264,7 @@ Weights can be any number.
 
 ##### fset
 
-Selects a random value from a set of possible values contained within a file.
+Selects a random value from a set of possible values contained within a file and caches the enumeration so it's not reloaded from disk on every invocation.
 
 ```
 '{{fset "./examples/types.txt"}}'

examples/script.sql

@@ -16,8 +16,8 @@ insert into "pet" ("pid", "name", "type") values
 {{range $i, $e := ntimes 5 }}
 	{{if $i}},{{end}}
 	(
-		'{{each "owner" "id" $i}}',
+		'{{ref "owner" "id"}}',
 		'{{string 10 10 "p-" "abcde"}}',
-		'{{fset "./examples/types.txt"}}'
+		'{{wset "dog" 60 "cat" 40}}'
 	)
 {{end}};