uniform project structure

.pre-commit-config.yaml

 repos:
   - repo: git@codechina.csdn.net:csdn/skill_tree_hook.git
-    rev: 450097b0e3d8b23d98a9ecc61bb104bb9124876b
+    rev: 8cb76ab3b493582d3dab0021fb6fddfa28ec5a66
     hooks:
       - id: pre-commit
         verbose: true
\ No newline at end of file

requirements.txt

 pre_commit~=2.16.0
-GitPython~=3.1.24
 skill-tree-parser~=0.0.3