Location of the documentation

https://pandas.pydata.org/docs/development/contributing.html

Documentation problem

The page is long and covers a lot:

• Environment setup
• The mechanics of contributing to code and docs
• Code standards

Suggested fix for documentation

I suggest streamlining the primary Contributing page to be about the basic workflow, splitting out

OkDownload Version

1.0.5

Problem Describe

判断任务是否在运行的代码：

public synchronized boolean isRunning(DownloadTask task) {
        Util.d(TAG, "isRunning: " + task.getId());
        for (DownloadCall call : runningSyncCalls) {
            if (call.isCanceled()) continue;
            if (call.equalsTask(task)) {
                return true;
            }
        }