DEV: Use describe for methods in specs

spec/requests/embed_controller_spec.rb

@@ -30,7 +30,7 @@ describe EmbedController do
     end
   end
 
-  context "#info" do
+  describe "#info" do
     context "without api key" do
       it "fails" do
         get '/embed/info.json'
@@ -70,7 +70,7 @@ describe EmbedController do
     end
   end
 
-  context "#topics" do
+  describe "#topics" do
     it "raises an error when not enabled" do
       get '/embed/topics?embed_id=de-1234'
       expect(response.status).to eq(400)