provide map.entries entry mapper functions with reference to functor being mapped

update map.entries synopsis

```
* type EntryMapper = (
* entry [key string|any, value any],
* ftor FunctorWithEntries
* )=>Promise|[resultKey string|any, resultItem Promise|any]
```

update docs

```
* If the functor is a map:
*
* ```coffeescript [specscript]
* mapper(entry [key any, value any], ftor Map) -> resultEntry Promise|[
* resultKey any,
* resultValue any,
* ]
* ```
*
* If the functor is an object:
*
* ```coffeescript [specscript]
* mapper(entry [key string, value any], ftor Object) -> resultEntry Promise|[
* resultKey string,
* resultValue any,
* ]
* ```
```

此 issue 涉及更新 map.entries 函式的文件。查看程式碼庫中現有的 map.entries 文件，可能位於 README 或 API 文件檔案中。更新概要和範例，以包含第二個參數（被映射的 functor），如 issue 內文所示。透過檢查格式並確保範例正確來驗證變更。

由索引模型根據 Issue 內容生成。