[Improvement][doc] correct error in CONTRIBUTING.md (#13012)

CONTRIBUTING.md

@@ -1,99 +1 @@
-# How To Contribute
+Please refer to the contribution document [How to contribute](https://dolphinscheduler.apache.org/en-us/docs/latest/user_doc/contribute/join/contribute.html)
-
-Start by forking the dolphinscheduler GitHub repository, make changes in a branch and then send a pull request.
-
-## Set up your dolphinscheduler GitHub Repository
-
-There are three branches in the remote repository currently:
-
-- `master` : normal delivery branch. After the stable version is released, the code for the stable version branch is merged into the master branch.
-
-- `dev` : daily development branch. The daily development branch, the newly submitted code can pull requests to this branch.
-
-- `x.x.x-release` : the stable release version.
-
-So, you should fork the `dev` branch.
-
-After forking the [dolphinscheduler upstream source repository](https://github.com/apache/dolphinscheduler/fork) to your personal repository, you can set your  personal development environment.
-
-```sh
-cd <your work direcotry>
-git clone <your personal forked dolphinscheduler repo>
-cd dolphinscheduler
-```
-
-## Set git remote as `upstream`
-
-Add remote repository address, named upstream
-
-```sh
-git remote add upstream https://github.com/apache/dolphinscheduler.git
-```
-
-View repository:
-
-```sh
-git remote -v
-```
-
-There will be two repositories at this time: origin (your own warehouse) and upstream (remote repository)
-
-Get/update remote repository code (already the latest code, skip it).
-
-```sh
-git fetch upstream
-```
-
-Synchronize remote repository code to local repository
-
-```sh
-git checkout origin/dev
-git merge --no-ff upstream/dev
-```
-
-If remote branch has a new branch `dev-1.0`, you need to synchronize this branch to the local repository, then push to your own repository.
-
-```sh
-git checkout -b dev-1.0 upstream/dev-1.0
-git push --set-upstream origin dev-1.0
-```
-
-## Create your feature branch
-
-Before making code changes, make sure you create a separate branch for them.
-
-```sh
-git checkout -b <your-feature-branch> dev
-```
-
-## Commit changes
-
-After modifying the code locally, submit it to your own repository:
-
-```sh
-git commit -m 'information about your feature'
-```
-
-## Push to the branch
-
-Push your locally committed changes to the remote origin (your fork).
-
-```sh
-git push origin <your-feature-branch>
-```
-
-## Create a pull request
-
-After submitting changes to your remote repository, you should click on the new pull request On the following github page.
-
-<p align = "center">
-<img src = "http://geek.analysys.cn/static/upload/221/2019-04-02/90f3abbf-70ef-4334-b8d6-9014c9cf4c7f.png" width ="60%"/>
-</p>
-
-Select the modified local branch and the branch to merge past to create a pull request.
-
-<p align = "center">
-<img src = "http://geek.analysys.cn/static/upload/221/2019-04-02/fe7eecfe-2720-4736-951b-b3387cf1ae41.png" width ="60%"/>
-</p>
-
-Next, the administrator is responsible for **merging** to complete the pull request.