Update rates in catalogItems and fbaInventory

Changed searchCatalogItems rates in catalogItems_2020-12-01.md to
both be 5, and changed getInventorySummaries rates in fbaInventory.md
to both be 2.

models/catalog-items-api-model/catalogItems_2020-12-01.json

@@ -29,7 +29,7 @@
         "tags": [
           "catalog"
         ],
-        "description": "Search for and return a list of Amazon catalog items and associated information.\n\n**Usage Plans:**\n\n| Plan type | Rate (requests per second) | Burst |\n| ---- | ---- | ---- |\n|Default| 1 | 5 |\n|Selling partner specific| Variable | Variable |\n\nThe x-amzn-RateLimit-Limit response header returns the usage plan rate limits that were applied to the requested operation. Rate limits for some selling partners will vary from the default rate and burst shown in the table above. For more information, see [Usage Plans and Rate Limits in the Selling Partner API](https://github.com/amzn/selling-partner-api-docs/blob/main/guides/en-US/usage-plans-rate-limits/Usage-Plans-and-Rate-Limits.md).",
+        "description": "Search for and return a list of Amazon catalog items and associated information.\n\n**Usage Plans:**\n\n| Plan type | Rate (requests per second) | Burst |\n| ---- | ---- | ---- |\n|Default| 5 | 5 |\n|Selling partner specific| Variable | Variable |\n\nThe x-amzn-RateLimit-Limit response header returns the usage plan rate limits that were applied to the requested operation. Rate limits for some selling partners will vary from the default rate and burst shown in the table above. For more information, see [Usage Plans and Rate Limits in the Selling Partner API](https://github.com/amzn/selling-partner-api-docs/blob/main/guides/en-US/usage-plans-rate-limits/Usage-Plans-and-Rate-Limits.md).",
         "operationId": "searchCatalogItems",
         "consumes": [
           "application/json"

models/fba-inventory-api-model/fbaInventory.json

@@ -29,7 +29,7 @@
         "tags": [
           "fbaInventory"
         ],
-        "description": "Returns a list of inventory summaries. The summaries returned depend on the presence or absence of the startDateTime and sellerSkus parameters:\n\n- All inventory summaries with available details are returned when the startDateTime and sellerSkus parameters are omitted.\n- When startDateTime is provided, the operation returns inventory summaries that have had changes after the date and time specified. The sellerSkus parameter is ignored.\n- When the sellerSkus parameter is provided, the operation returns inventory summaries for only the specified sellerSkus.\n\n**Usage Plan:**\n\n| Rate (requests per second) | Burst |\n| ---- | ---- |\n| 5 | 10 |\n\nFor more information, see \"Usage Plans and Rate Limits\" in the Selling Partner API documentation.",
+        "description": "Returns a list of inventory summaries. The summaries returned depend on the presence or absence of the startDateTime and sellerSkus parameters:\n\n- All inventory summaries with available details are returned when the startDateTime and sellerSkus parameters are omitted.\n- When startDateTime is provided, the operation returns inventory summaries that have had changes after the date and time specified. The sellerSkus parameter is ignored.\n- When the sellerSkus parameter is provided, the operation returns inventory summaries for only the specified sellerSkus.\n\n**Usage Plan:**\n\n| Rate (requests per second) | Burst |\n| ---- | ---- |\n| 2 | 2 |\n\nFor more information, see \"Usage Plans and Rate Limits\" in the Selling Partner API documentation.",
         "operationId": "getInventorySummaries",
         "produces": [
           "application/json"