Add support for inline partials

Fixes #7444

docs/content/en/templates/partials.md

@@ -81,6 +81,21 @@ This means the partial will *only* be able to access those variables. The partia
 
 In addition to outputting markup, partials can be used to return a value of any type. In order to return a value, a partial must include a lone `return` statement.
 
+## Inline partials
+
+{{< new-in "0.74.0" >}}
+
+You can also define partials inline in the template. But remember that template namespace is global, so you need to make sure that the names are unique to avoid conflicts.
+
+```go-html-template
+Value: {{ partial "my-inline-partial" . }}
+
+{{ define "partials/my-inline-partial" }}
+{{ $value := 32 }}
+{{ return $value }}
+{{ end }}
+```
+
 ### Example GetFeatured
 ```go-html-template
 {{/* layouts/partials/GetFeatured.html */}}