Add TomDoc documentation to the get_documents method

Author: brunoocasali

lib/meilisearch/index.rb

@@ -63,6 +63,17 @@ def document(document_id, fields: nil)
     alias get_document document
     alias get_one_document document
 
+
+    # Public: Retrieve documents from a index.
+    #
+    # options - The hash options used to refine the selection (default: {}):
+    #           :limit  - Number of documents to return (optional).
+    #           :offset - Number of documents to skip (optional).
+    #           :fields - Array of document attributes to show (optional).
+    #           :filter - Filter queries by an attribute's value. 
+    #                     Available ONLY with Meilisearch v1.2 and newer (optional).
+    #
+    # Returns the documents results object.
     def documents(options = {})
       Utils.version_error_handler(__method__) do
         if options.key?(:filter)