update nav

mkdocs.yml

@@ -236,6 +236,7 @@ nav:
           - SHOW TAGS: 3.ngql-guide/10.tag-statements/4.show-tags.md
           - DESCRIBE TAG: 3.ngql-guide/10.tag-statements/5.describe-tag.md
           - DELETE TAG: 3.ngql-guide/10.tag-statements/6.delete-tag.md
+          - Add or delete tag: 3.ngql-guide/10.tag-statements/improve-query-by-tag-index.md
 
       - Edge type statements:
           - CREATE EDGE: 3.ngql-guide/11.edge-type-statements/1.create-edge.md
@@ -336,7 +337,6 @@ nav:
     - System design suggestions: 8.service-tuning/3.system-design.md
     - Execution plan: 8.service-tuning/4.plan.md
     - Processing super vertices: 8.service-tuning/super-node.md
-    - Add or delete tag: 8.service-tuning/improve-query-by-tag-index.md
     - Best practices: 8.service-tuning/practice.md
 
   - Client:
@@ -486,6 +486,9 @@ plugins:
       glob:
 # Exclude all files in a directory. The path starts with the directory name in docs-2.0, such as `20.appendix/*`.
         - 7.data-security/2.backup-restore/*
+        - nebula-flink/*
+        - CHANGELOG.md
+        - spark-connector/*
 # Exclude the file with the following file name.
 #        - abc.md
 # Exclude files with regular expressions (regexes)