Merge pull request #31861 from YuPengZTE/devNote

Automatic merge from submit-queue

The first letter is small

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**What this PR does / why we need it**:

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

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**Release note**:
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1 files changed, 1 insertions, 1 deletions

diff --git a/resource-qos.md b/resource-qos.md
index af84b648..b2a43c97 100644
--- a/resource-qos.md
+++ b/resource-qos.md
@@ -228,7 +228,7 @@ Pod OOM score configuration
   - OOM_SCORE_ADJ: -998
 *Kubelet, Docker*
   - OOM_SCORE_ADJ: -999 (won’t be OOM killed)
-  - Hack, because these critical tasks might die if they conflict with guaranteed containers. in the future, we should place all user-pods into a separate cgroup, and set a limit on the memory they can consume.
+  - Hack, because these critical tasks might die if they conflict with guaranteed containers. In the future, we should place all user-pods into a separate cgroup, and set a limit on the memory they can consume.
 
 ## Known issues and possible improvements