Change westend to paseo (#184)

Author: Maksandre

docs/build/sdk/v2/asset-hub.md

@@ -6,7 +6,7 @@ The Unique SDK supports the Asset Hub, as well as the `uniques` and `nfts` palle
 import { AssetHub } from "@unique-nft/sdk";
 
 const assetHub = AssetHub({
-  baseUrl: "https://rest.unique.network/v2/westend-asset-hub",
+  baseUrl: "https://rest.unique.network/v2/paseo-asset-hub",
   account,
 });
 ```

docs/reference/sdk-endpoints.md

@@ -16,7 +16,6 @@
 |----------|----------|
 | Polkadot | https://rest.unique.network/v2/polkadot-asset-hub |
 | Kusama | https://rest.unique.network/v2/kusama-asset-hub |
-| Westend | https://rest.unique.network/v2/westend-asset-hub |
 | Paseo | https://rest.unique.network/v2/paseo-asset-hub |
 
 ## SDK-1.0 (Legacy)