Fix bucket URLs

Author: mnewswanger-cloudflare

src/content/docs/r2/buckets/cors.mdx

@@ -43,7 +43,7 @@ The example below shows how to generate a presigned `PutObject` URL using the [`
 import { PutObjectCommand, S3Client } from "@aws-sdk/client-s3";
 import { getSignedUrl } from "@aws-sdk/s3-request-presigner";
 const S3 = new S3Client({
-	endpoint: "https://<bucket>.r2.cloudflarestorage.com",
+	endpoint: "https://<account_id>.r2.cloudflarestorage.com",
 	credentials: {
 		accessKeyId: "<access_key_id>",
 		secretAccessKey: "<access_key_secret>",

src/content/docs/r2/buckets/object-lifecycles.mdx

@@ -59,7 +59,7 @@ Below is an example of configuring a lifecycle configuration (a collection of li
 
 ```js title="Configure the S3 client to interact with R2"
 const client = new S3({
-	endpoint: "https://<bucket>.r2.cloudflarestorage.com",
+	endpoint: "https://<account_id>.r2.cloudflarestorage.com",
 	credentials: {
 		accessKeyId: "<access_key_id>",
 		secretAccessKey: "<access_key_secret>",
@@ -154,7 +154,7 @@ import S3 from "aws-sdk/clients/s3.js";
 
 // Configure the S3 client to talk to R2.
 const client = new S3({
-	endpoint: "https://<bucket>.r2.cloudflarestorage.com",
+	endpoint: "https://<account_id>.r2.cloudflarestorage.com",
 	credentials: {
 		accessKeyId: "<access_key_id>",
 		secretAccessKey: "<access_key_secret>",
@@ -197,7 +197,7 @@ import S3 from "aws-sdk/clients/s3.js";
 
 // Configure the S3 client to talk to R2.
 const client = new S3({
-	endpoint: "https://<bucket>.r2.cloudflarestorage.com",
+	endpoint: "https://<account_id>.r2.cloudflarestorage.com",
 	credentials: {
 		accessKeyId: "<access_key_id>",
 		secretAccessKey: "<access_key_secret>",

src/content/docs/r2/reference/data-location.mdx

@@ -107,7 +107,7 @@ The example below shows how to create an R2 bucket in the `eu` jurisdiction usin
 ```js
 import { S3Client, CreateBucketCommand } from "@aws-sdk/client-s3";
 const S3 = new S3Client({
-	endpoint: "https://<bucket>.eu.r2.cloudflarestorage.com",
+	endpoint: "https://<account_id>.eu.r2.cloudflarestorage.com",
 	credentials: {
 		accessKeyId: "<access_key_id",
 		secretAccessKey: "<access_key_secret>",