chore: modify comment (#184)

Signed-off-by: huangmin <2107139596@qq.com>

charts/dragonfly/Chart.yaml

@@ -3,8 +3,8 @@ name: dragonfly
 description: Dragonfly is an intelligent P2P based image and file distribution system
 icon: https://raw.githubusercontent.com/dragonflyoss/Dragonfly2/main/docs/images/logo/dragonfly.svg
 type: application
-version: 1.0.7
-appVersion: 1.0.7
+version: 1.0.8
+appVersion: 1.0.8
 keywords:
   - dragonfly
   - d7y
@@ -26,7 +26,7 @@ sources:
 
 annotations:
   artifacthub.io/changes: |
-    - Add trainer and triton service.
+    - Add dots to documentation comments.
 
   artifacthub.io/links: |
     - name: Chart Source