Update README.md

Author: YuqiHuai

README.md

@@ -25,8 +25,8 @@ As an effort to keep the tool available for future researches, a draft for a loc
 1. Install Docker
 2. Clone the project
 3. Download assets needed from [Google Drive](https://drive.google.com/drive/folders/1bv02d29z4lSB9SWzCBTUt0GjAb876oSR?usp=sharing) and unzip them in `server/assets`. (preview, maps, plugins, vehicles, hdmaps)
-> Since the zip file for entire maps directory is too large, you will have to manually download map asset individually from the Google Drive folder.
-> Also, when downloading individual asset file, make sure there is no file extension.
+> Since the compressed file for entire maps directory is too large, you will have to manually download map asset individually from the Google Drive folder.
+> Also, when downloading individual asset file, make sure there is no file extension. Google sometimes automatically adds ".zip" to the end, make sure to remove this from the filename.
 
 4. Create `.env` file for server and client following the template (should be same as template, change if you know what you are doing) (The template refers to `server/.env.template` and `client/.env.template`)
 5. Run `docker-compose up --build -d`