docs: inputs: opentelemetry: fix tag_from_uri precedence description (#2544)

Author: eschabell

pipeline/inputs/opentelemetry.md

@@ -60,7 +60,7 @@ For a cross-plugin explanation of the shared listener settings, see
 | `storage.type`                      | Sets the storage type for this input, one of: `filesystem`, `memory` or `memrb`.                                                                                                              | `memory`    |
 | `successful_response_code`          | Allows for setting a successful response code. Supported values: `200`, `201`, or `204`.                                                                                                      | `201`       |
 | `tag`                               | Set a tag for the events generated by this input plugin.                                                                                                                                      | _none_      |
-| `tag_from_uri`                      | By default, the tag will be created from the URI. For example, `v1_metrics` from `/v1/metrics`. This must be set to false if using `tag`.                                                     | `true`      |
+| `tag_from_uri`                      | If no explicit `tag` is set, the tag is created from the URI. For example, `v1_metrics` from `/v1/metrics`. When an explicit `tag` is configured, it takes precedence over the URI-derived tag regardless of this setting. | `true`      |
 | `tag_key`                           | Record accessor key to use for generating tags from incoming records.                                                                                                                         | _none_      |
 | `thread.ring_buffer.capacity`       | Number of slots in the ring buffer for data entries when running in [threaded](../../administration/multithreading.md) mode. Each slot can hold one data entry.                              | `1024`      |
 | `thread.ring_buffer.window`         | Percentage threshold (1-100) of the ring buffer capacity at which a flush is triggered when running in [threaded](../../administration/multithreading.md) mode.                              | `5`         |