Implements displaying a README.md file present in a users ```.profile```
repository on the users profile page. If no such repository/file is
present, the user's profile page remains unchanged.
Example of user with ```.profile/README.md```
![image](https://user-images.githubusercontent.com/34464552/222757202-5d53ac62-60d9-432f-b9e3-2537ffa91041.png)
Example of user without ```.profile/README.md```
![image](https://user-images.githubusercontent.com/34464552/222759972-576e058b-acd4-47ac-be33-38a7cb58cc81.png)
This pull request closes the feature request in #12233
Special thanks to @techknowlogick for the help in the Gitea discord!
---------
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: Yarden Shoham <hrsi88@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: yp05327 <576951401@qq.com>
Co-authored-by: Yarden Shoham <git@yardenshoham.com>