docs: Pre-format example for named_stores_config (#14524)

docs/sources/shared/configuration.md

@@ -4064,12 +4064,14 @@ When a memberlist config with atleast 1 join_members is defined, kvstore of type
 Configures additional object stores for a given storage provider.
 Supported stores: aws, azure, bos, filesystem, gcs, swift.
 Example:
-storage_config:
-  named_stores:
-    aws:
-      store-1:
-        endpoint: s3://foo-bucket
-        region: us-west1
+```yaml
+    storage_config:
+      named_stores:
+        aws:
+          store-1:
+            endpoint: s3://foo-bucket
+            region: us-west1
+```
 Named store from this example can be used by setting object_store to store-1 in period_config.
 
 ```yaml
@@ -5555,12 +5557,14 @@ hedging:
 # Configures additional object stores for a given storage provider.
 # Supported stores: aws, azure, bos, filesystem, gcs, swift.
 # Example:
-# storage_config:
-#   named_stores:
-#     aws:
-#       store-1:
-#         endpoint: s3://foo-bucket
-#         region: us-west1
+# ```yaml
+#     storage_config:
+#       named_stores:
+#         aws:
+#           store-1:
+#             endpoint: s3://foo-bucket
+#             region: us-west1
+# ```
 # Named store from this example can be used by setting object_store to store-1
 # in period_config.
 [named_stores: <named_stores_config>]

tools/doc-generator/parse/root_blocks.go

@@ -280,12 +280,14 @@ When a memberlist config with atleast 1 join_members is defined, kvstore of type
 			Desc: `Configures additional object stores for a given storage provider.
 Supported stores: aws, azure, bos, filesystem, gcs, swift.
 Example:
-storage_config:
-  named_stores:
-    aws:
-      store-1:
-        endpoint: s3://foo-bucket
-        region: us-west1
+` + "```yaml" + `
+    storage_config:
+      named_stores:
+        aws:
+          store-1:
+            endpoint: s3://foo-bucket
+            region: us-west1
+` + "```" + `
 Named store from this example can be used by setting object_store to store-1 in period_config.`,
 		},
 		{