Align documentation with cleanup results

docs/templates.md

@@ -6,7 +6,8 @@ This guide describes the implemented Markdown report template surface for
 `weatherreporter`. It is for maintainers editing embedded report templates,
 especially generated-text-template reports.
 
-Templates are Go `text/template` files. The current implemented templates are:
+Templates are Go `text/template` files. The implemented top-level templates
+are:
 
 - `internal/reporttemplate/templates/daily.md.tmpl`
 - `internal/reporttemplate/templates/today.md.tmpl`
@@ -32,7 +33,7 @@ validation, and artifact paths are handled before template rendering.
 - Do not put weather derivation, source selection, or path construction logic in
   templates.
 - Missing template keys are errors. A misspelled variable will fail rendering.
-- No custom template functions are currently registered.
+- No custom template functions are registered.
 - Named partials are invoked with `{{ template "name" . }}`. Pass the current
   render context (`.`) unless the partial is intentionally designed for a
   narrower value.
@@ -112,6 +113,9 @@ Tomorrow generated text uses the same `.GeneratedText.Summary`,
 Hourly. `.GeneratedText.ForecastDiscussion` is a slice of paragraphs and should
 be rendered with `range`.
 
+Tomorrow uses the shared `daypart_forecast` and `precipitation_timing`
+partials.
+
 Tomorrow modules include the Hourly module fields plus:
 
 | Variable | Type | Description |