docs: refine docs about translations

Author: weareoutman

README.md

@@ -92,7 +92,7 @@ yarn add nodejieba
 | highlightSearchTermsOnTargetPage | boolean            | `false`   | Highlight search terms on target page.                                                                                                       |
 | searchResultLimits               | number             | `8`       | Limit the search results.                                                                                                                    |
 | searchResultContextMaxLength     | number             | `50`      | Set the max length of characters of each search result to show.                                                                              |
-| translations                     | TranslationMap     | -         | Set translations of this plugin, see [docs below](#translations).                                                                                           |
+| translations                     | TranslationMap     | -         | Set translations of this plugin, see [docs below](#translations).                                                                            |
 
 ### Translations
 
@@ -106,12 +106,13 @@ To make this plugin localized, pass a `translations` option which defaults to:
   "search_results_for": "Search results for \"{{ keyword }}\"",
   "search_the_documentation": "Search the documentation",
   "count_documents_found": "{{ count }} document found",
-  // `*_plural` can be omitted if it is the same as singular.
   "count_documents_found_plural": "{{ count }} documents found",
   "no_documents_were_found": "No documents were found"
 }
 ```
 
+Note that `*_plural` can be omitted if it is the same as singular.
+
 ## Custom Styles
 
 This plugin is shipped with polished styles just like the Algolia Search on the Docusaurus v2 website. Feel free to override these css custom properties (css variables) below.