message: Add a flowchart [skip ci]
diff: @@ -62,3 +62,31 @@ flowchart LR
  click ParserWorkers "https://github.com/James-Yu/LaTeX-Workshop/blob/master/src/components/parser/syntax_worker.ts"
  click MathJaxWorkers "https://github.com/James-Yu/LaTeX-Workshop/blob/master/src/providers/preview/mathjaxpool_worker.ts"
  ```
  +
  +## flowchart
  +
  +```mermaid
  +flowchart LR
  + ActivationEvents{{Activation Events}}
  + Activate["activate"]
  + Ready((Ready))
  + FindRootFile["Find root file"]
  + ActivationEvents --> Activate --> FindRootFile
  + ActiveDocumentOpened{{New document opened}}
  + Ready --> ActiveDocumentOpened
  + ActiveDocumentOpened --> FindRootFile
  + ActiveDocumentChanged{{The active tab changed}}
  + Ready --> ActiveDocumentChanged
  + ActiveDocumentChanged --> FindRootFile
  + FindRootFile --> Parse --> Ready
  + ActiveDocumentSaved{{The activate document saved}}
  + Ready --> ActiveDocumentSaved
  + ActiveDocumentSaved --> Build
  + Build["Build the root file"]
  + Parse["Parse files"]
  + Ready -- build command --> Build
  + Build --> Parse
  + ActiveTextChanged{{The active document edited}}
  + Ready --> ActiveTextChanged
  + ActiveTextChanged --> Parse
  +```
  \ No newline at end of file
  