Fix ci

Signed-off-by: JaySon-Huang <[email protected]>

Author: JaySon-Huang

tiflash/troubleshoot-tiflash.md

@@ -194,7 +194,7 @@ If TiFlash replicas consistently fail to be created since the TiDB cluster is de
 
 5. Check whether the remaining disk space percentage on the machine where TiFlash nodes reside is higher than the [`low-space-ratio`](/pd-configuration-file.md#low-space-ratio) value. The default value is 0.8, meaning when a node's used space exceeds 80% of its capacity, PD will avoid migrating Regions to that node to prevent disk space exhaustion. If all TiFlash nodes have insufficient remaining space, PD will stop scheduling new Region peers to TiFlash, causing replicas to remain in an unavailable state (progress < 1).
 
-    - If the disk usage reaches or exceeds `low-space-ratio`, it indicates insufficient disk space. In this case, please delete unnecessary files such as the `space_placeholder_file` under the `${data}/flash/` directory. If necessary, after deleting files, you may temporarily set `storage.reserve-space` to 0MB in the tiflash-learner.toml configuration file to restore TiFlash service.
+    - If the disk usage reaches or exceeds `low-space-ratio`, it indicates insufficient disk space. In this case, please delete unnecessary files such as the `space_placeholder_file` under the `${data}/flash/` directory. If necessary, after deleting files, you may temporarily set `storage.reserve-space` to `0MB` in the tiflash-learner.toml configuration file to restore TiFlash service.
     - If the disk usage is below `low-space-ratio`, it indicates normal disk space availability. Proceed to the next step.
 
 6. Check whether there is any `down peer`. Any `down peer` might cause the replication to get stuck.