clarify tools/usage arg map

content/reference/clojure_cli.adoc

@@ -350,7 +350,7 @@ Programs run by the Clojure CLI are given the "runtime basis" for the execution,
 [[namespaces]]
 === Namespace resolution
 
-Symbols in the exec-opts or argmaps (like `:exec-fn`) are resolved with the following rules:
+Symbols in the exec-opts or arg maps (like `:exec-fn`) are resolved with the following rules:
 
 * If function is unqualified, use the namespace in the `:ns-default` key in the arg map (if none, this is an error)
 * If function is qualified, and the qualifier is an alias in the arg map under `:ns-aliases`, use that namespace

content/reference/deps_edn.adoc

@@ -438,7 +438,11 @@ Clojure CLI tools loaded from Github or a local dir can provide default tool con
 [[tools_usage]]
 === :tools/usage
 
-An exec argmap for a deps.edn-based tool.
+An exec arg map for a deps.edn-based tool which may contain the following attributes:
+
+* <<deps_edn#aliases_execargs,:exec-args>>
+* <<deps_edn#aliases_nsdefault,:ns-default>>
+* <<deps_edn#aliases_nsaliases,:ns-aliases>>
 
 [[prep]]
 == Prep lib