Restored README.md. Corrected imports.

Author: igormironchik

README.md

@@ -34,8 +34,8 @@ After checking out the sources from this repository, you need to create a
 [virtual environment](https://docs.python.org/3/tutorial/venv.html) and install the required packages:
 
 ```bash
-python3 -m venv venv
-venv/bin/pip install -r requirements.txt
+virtualenv -p python3 venv
+venv/bin/pip install -r requirements
 ```
 
 Next, we need to create a database where mutations and the results are stored:

db_migrate.py

@@ -3,8 +3,8 @@
 import imp
 from migrate.versioning import api
 from app import db
-from config import SQLALCHEMY_DATABASE_URI
-from config import SQLALCHEMY_MIGRATE_REPO
+from app.config import SQLALCHEMY_DATABASE_URI
+from app.config import SQLALCHEMY_MIGRATE_REPO
 
 if __name__ == '__main__':
     v = api.db_version(SQLALCHEMY_DATABASE_URI, SQLALCHEMY_MIGRATE_REPO)

db_upgrade.py

@@ -1,8 +1,8 @@
 # coding=utf-8
 
 from migrate.versioning import api
-from config import SQLALCHEMY_DATABASE_URI
-from config import SQLALCHEMY_MIGRATE_REPO
+from app.config import SQLALCHEMY_DATABASE_URI
+from app.config import SQLALCHEMY_MIGRATE_REPO
 
 if __name__ == '__main__':
     api.upgrade(SQLALCHEMY_DATABASE_URI, SQLALCHEMY_MIGRATE_REPO)