add empty db folder, fix readme

README.md

@@ -67,21 +67,21 @@ __Make sure you already installed [docker](https://www.docker.com)__
 
 __If you already had a backup file `cards.db`. Run following command:__
 *Note: We don't need to rebuild image, just delete old container if you already built.*
-`docker run -d -p 8000:8000 --name cs-flash-cards -v :<path_to_folder_contains_cards_db>:/src/db cs-flash-cards`
-`<path_to_folder_contains_cards_db>`: is the full path contains `cards.db`
+`docker run -d -p 8000:8000 --name cs-flash-cards -v :<path_to_folder_contains_cards_db>:/src/db cs-flash-cards`.
+`<path_to_folder_contains_cards_db>`: is the full path contains `cards.db`.
 Example: `/home/tinpee/cs-flash-cards/db`, and `cards.db` is inside this folder.
 
-For convenient, if you don't have `cards.db`, this container will auto copy a new one from `cards-jwasham.db`. So you don't need to `initdb`
+For convenient, if you don't have `cards.db`, this container will auto copy a new one from `cards-jwasham.db`. So you don't need to `initdb`.
 
-__How to backup data ?__
+### How to backup data ?
 We just need store `cards.db` file, and don't need any sql command.
 - If you run container with `-v <folder_db>:/src/db` just go to `folder_db` and store `cards.db` anywhere you want.
 - Without `-v flag`. Type: `docker cp <name_of_container>:/src/db/cards.db /path/to/save`
 
-__How to restore data ?__
+### How to restore data ?
 - Delete old container (not image): `docker rm cs-flash-cards`
 - Build a new one with `-v flag`:
-`docker run -d -p 8000:8000 --name cs-flash-cards -v :<path_to_folder_contains_cards_db>:/src/db cs-flash-cards`
+`docker run -d -p 8000:8000 --name cs-flash-cards -v <path_to_folder_contains_cards_db>:/src/db cs-flash-cards`
 - Voila :)
 
 *Happy learning!*

entrypoint.sh

@@ -1,7 +1,6 @@
 #!/bin/bash
 
 if [ ! -f /src/db/cards.db ]; then
-	mkdir -p /src/db
 	cp cards-jwasham.db /src/db/cards.db
 fi