Tests added, makes flaky test a little less flaky

Author: Andre

.code-samples.meilisearch.yaml

@@ -347,6 +347,10 @@ search_parameter_guide_matching_strategy_2: |-
   client.index('movies').search('big fat liar', {
     matching_strategy: 'all'
   })
+search_parameter_guide_matching_strategy_3: |-
+  client.index('movies').search('white shirt', {
+    matching_strategy: 'frequency'
+  })
 search_parameter_guide_show_ranking_score_1: |-
   client.index('movies').search('dragon', {
     show_ranking_score: true

spec/meilisearch/client/indexes_spec.rb

@@ -257,7 +257,7 @@
 
     context 'when the index does not exist' do
       it 'raises an index not found error' do
-        expect { client.fetch_index('books') }.to raise_index_not_found_meilisearch_api_error
+        expect { client.fetch_index('bookss') }.to raise_index_not_found_meilisearch_api_error
       end
     end
   end

spec/meilisearch/index/search/matching_strategy_spec.rb

@@ -14,4 +14,10 @@
 
     expect(response['hits'].count).to eq(2)
   end
+
+  it 'does a custom search with a matching strategy frequency' do
+    response = index.search('best book again', matching_strategy: 'frequency')
+
+    expect(response['hits'].count).to eq(1)
+  end
 end