simplify compilation requestors

docs/semantic-index.md

@@ -217,21 +217,21 @@ This tells you: `connect` is a function taking `(from, to, label)`, declared on
 
 The index and explain modules can be used directly from ƿit scripts:
 
-### index.cm
+### Via shop (recommended)
 
 ```javascript
-var tokenize_mod = use('tokenize')
-var parse_mod = use('parse')
-var fold_mod = use('fold')
-var index_mod = use('index')
-
-var pipeline = {tokenize: tokenize_mod, parse: parse_mod, fold: fold_mod}
-var idx = index_mod.index_file(src, filename, pipeline)
+var shop = use('internal/shop')
+var idx = shop.index_file(path)
 ```
 
-`index_file` runs the full pipeline (tokenize, parse, fold) and returns the index. If you already have a parsed AST and tokens, use `index_ast` instead:
+`shop.index_file` runs the full pipeline (tokenize, parse, index, resolve imports) and caches the result.
+
+### index.cm (direct)
+
+If you already have a parsed AST and tokens, use `index_ast` directly:
 
 ```javascript
+var index_mod = use('index')
 var idx = index_mod.index_ast(ast, tokens, filename)
 ```