fix some problems to adapt windows env while i tried to use miservice

[cimpapa]

1. README.md: Modify the order of installation dependencies to avoid the situation where aiohttp cannot be found
2. setup.py: Modified the specified encoding format to utf-8 to adapt to the installation environment under windows
3. micli.py: Add the judgment of whether the current environment is a windows environment to specify the specific implementation of the event loop to avoid the following problems