cleanup, docs

site/doc/pages/unit_load.txt

@@ -6,6 +6,7 @@ file_name : unit source path
 return value : native SharedUnit pointer (native runtime internals only)
 
 :see
+>ob
 >unit_compile
 >unit_info
 >unit_call
@@ -14,3 +15,6 @@ return value : native SharedUnit pointer (native runtime internals only)
 native-only internal API. `unit_load()` returns a process-local `SharedUnit*`, which is not a valid value across the wasm membrane and is not exposed to wasm units.
 
 Use unit-facing APIs such as `unit_info()`, `unit_compile()`, `unit_call()`, `unit_render()`, or component helpers instead.
+
+:example
+print("unit_load example\n");