Update README.md for k8sattributesprocessor (open-telemetry#34773)

Fixing broken link for extracting attributes from pod labels and
annotations.

**Description:** <Describe what has changed.>
<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->

**Link to tracking Issue:** <Issue number if applicable>

**Testing:** <Describe what testing was performed and which tests were
added.>

**Documentation:** <Describe the documentation added.>

Co-authored-by: Tyler Helmuth <12352919+TylerHelmuth@users.noreply.github.com>

Author: 2 people

processor/k8sattributesprocessor/README.md

@@ -88,7 +88,7 @@ are then also available for the use within association rules. Available attribut
   - k8s.job.name
   - k8s.node.name
   - k8s.cluster.uid
-  - Any tags extracted from the pod labels and annotations, as described in [extracting attributes from metadata](#extracting-attributes-from-metadata)
+  - Any tags extracted from the pod labels and annotations, as described in [extracting attributes from pod labels and annotations](#extracting-attributes-from-pod-labels-and-annotations)
 
 
 Not all the attributes are guaranteed to be added. Only attribute names from `metadata` should be used for