From e3cf90f7120ca160a4320baf6a9153f080caec4b Mon Sep 17 00:00:00 2001
From: Peter Deng <yundeng@ebay.com>
Date: Mon, 2 May 2022 10:36:58 +0800
Subject: [PATCH] update doc

---
 processor/k8sattributesprocessor/config.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/processor/k8sattributesprocessor/config.go b/processor/k8sattributesprocessor/config.go
index 04184139528c..ec8addb4fe77 100644
--- a/processor/k8sattributesprocessor/config.go
+++ b/processor/k8sattributesprocessor/config.go
@@ -91,7 +91,7 @@ type ExtractConfig struct {
 //       k8s.pod.labels.<label key>
 //   For example, if tag_name is not specified and the key is git_sha,
 //   then the attribute name will be `k8s.pod.annotations.git_sha`.
-//   When key_regex is present, tag_name supports regular expression capturing groups.
+//   When key_regex is present, tag_name supports back reference to both named capturing and positioned capturing.
 //   For example, if your pod spec contains the following labels,
 //
 //		app.kubernetes.io/component: mysql