Address PR 2662 review feedback

Author: robzolkos

docs/API.md

@@ -144,7 +144,7 @@ curl -X POST \
   -H "Accept: application/json" \
   -H "Cookie: session_token=eyJfcmFpbHMi..." \
   -d '{"access_token": {"description": "Fizzy CLI", "permission": "write"}}' \
-  https://app.fizzy.do/my/access_tokens
+  https://app.fizzy.do/1234567/my/access_tokens
 ```
 
 Or with a Bearer token:

test/controllers/my/access_tokens_controller_test.rb

@@ -21,7 +21,7 @@ class My::AccessTokensControllerTest < ActionDispatch::IntegrationTest
 
   test "create new token via JSON with session" do
     assert_difference -> { identities(:kevin).access_tokens.count }, +1 do
-      post my_access_tokens_path(format: :json), params: { access_token: { description: "Fizzy CLI", permission: "write" } }
+      post my_access_tokens_path, params: { access_token: { description: "Fizzy CLI", permission: "write" } }, as: :json
     end
     assert_response :created
     body = @response.parsed_body
@@ -35,7 +35,7 @@ class My::AccessTokensControllerTest < ActionDispatch::IntegrationTest
     bearer_token = { "HTTP_AUTHORIZATION" => "Bearer #{identity_access_tokens(:davids_api_token).token}" }
 
     assert_difference -> { identities(:david).access_tokens.count }, +1 do
-      post my_access_tokens_path(format: :json), params: { access_token: { description: "Fizzy CLI", permission: "read" } }, env: bearer_token
+      post my_access_tokens_path, params: { access_token: { description: "Fizzy CLI", permission: "read" } }, env: bearer_token, as: :json
     end
     assert_response :created
     body = @response.parsed_body