docs(design): add term list

docs/template.typ

@@ -33,22 +33,23 @@
 // this'd require wrapping the whole document in a show rule
 // at which point `query` doesn't find anything anymore
 #let terms = (
+  "processing stage",
   "source",
   "AST",
   "graph IR",
   "runtime",
-  "evaluator",
 
   "optimizer",
   "scheduler",
-  "VM",
+  "evaluator",
+  "evaluation",
 
   "function",
   "instruction",
-  "pipeline",
   "input", "argument", "consumer",
   "output", "streamer",
   "modifier",
+  "pipeline",
 )
 // yes, the shadowing is intentional to avoid accidentally using the list
 #let terms = regex("\\b(" + terms.map(expand).join("|") + ")\\b")