chore: write styling

Author: WenyXu

blog/release-0-17-0.md

@@ -20,7 +20,7 @@ Release date: September 03, 2025
 
 - **PromQL:**
   - Support TQL CTE in planner ([#6645](https://github.com/GreptimeTeam/greptimedb/pull/6645), [#6671](https://github.com/GreptimeTeam/greptimedb/pull/6671))
-- **Perf:**
+- **Performance:**
   - Optimize sparse encoder with a 235% performance boost ([#6809](https://github.com/GreptimeTeam/greptimedb/pull/6809))
   - Introduced region pruning ([#6729](https://github.com/GreptimeTeam/greptimedb/pull/6729), [#6752](https://github.com/GreptimeTeam/greptimedb/pull/6752)).
 - **Procedure:**