MC-18403: Pricing :: Product pricing schema

- schema fixes

Author: danielrenaud

app/code/Magento/CatalogCustomerGraphQl/etc/schema.graphqls

@@ -10,13 +10,13 @@ type ProductTierPrices @doc(description: "ProductTierPrices is deprecated and ha
     customer_group_id: String @deprecated(reason: "customer_group_id is not relevant for storefront.") @doc(description: "The ID of the customer group.")
     qty: Float @deprecated(reason: "ProductTierPrices is deprecated, use TierPrice.quantity.") @doc(description: "The number of items that must be purchased to qualify for tier pricing.")
     value: Float @deprecated(reason: "ProductTierPrices is deprecated. Use TierPrice.final_price") @doc(description: "The price of the fixed price item.")
-    percentage_value: Float @decprected(reason: "ProductTierPrices is deprecated. Use TierPrice.discount.") @doc(description: "The percentage discount of the item.")
+    percentage_value: Float @deprecated(reason: "ProductTierPrices is deprecated. Use TierPrice.discount.") @doc(description: "The percentage discount of the item.")
     website_id: Float @deprecated(reason: "website_id is not relevant for storefront.") @doc(description: "The ID assigned to the website.")
 }
 
 
 type TierPrice @doc(description: "TierPrice defines a tier price, which is a price offered based on a particular quantity purchased.") {
     final_price: Money @doc(desription: "The price of the product at this tier.")
-    quantity: Float @doc(description: "The number of items that must be purchased to qualify for tier pricing.")
+    quantity: Float @doc(description: "The number of items that must be purchased to qualify for this price tier.")
     discount: ProductDiscount @doc(description: "The price discount that this tier represents.")
 }