Update README files.

Author: alexmacarthur

README.md

@@ -1,23 +1,33 @@
 # Local Docker DB
 
 ## What?
+
 A collection of Docker Compose files I've used to quickly spin local databases of various sorts.
 
 ## Why?
+
 Because I've oft needed them, particularly when I just don't wanna deal with the hassle of spinning up a DB on my own system.
 
 ## How? 
+
 Clone the repo or copy a `docker-compose.yml` file to your system, `cd` into that directory, and turn it on with `docker-compose up`. You may also use a `docker-compose.override.yml` file inside this repository to customize a container. For a full reference on how to use Docker Compose, [go here](https://docs.docker.com/compose/reference/).
 
+## Explore a Container w/ Bash
+
+In any given container, run the following. Most of the time, the service name will just be `db`, but there may be an exception or two.
+
+```
+docker-compose exec --user root SERVICE_NAME /bin/bash
+```
+
 ## Local Persistence
+
 In each setup, a managed volume is created to persist each container's data. This volume can be deleted by passing the `-v` option when deleting the container.
 
 ```
 docker-compose down -v
 ```
 
-## Authentication
-For authenticating as super user with each of these examples, `root` is the username and `password` is the password.
-
 ## Contributions
+
 If you have a Docker Compose configuration for a database not seen here, please consider making a pull request to add it!

mariadb/README.md

@@ -1,4 +1,6 @@
-# Enter the Container w/ Bash
+# MariaDB w/ Docker Compose
+
+## Enter the Container w/ Bash
 
 `docker-compose exec --user root db /bin/bash`
 
@@ -8,7 +10,13 @@
 
 When prompted, enter `password` as the password.
 
-# Create a DB
+## Super User Authentication
+
+Username: `root`
+
+Password: `password`
+
+## Create a DB
 
 While inside the shell, run the following:
 

mongo/README.md

@@ -1,12 +1,20 @@
-# Enter the Container w/ Bash
+# MongoDB w/ Docker Compose
+
+## Enter the Container w/ Bash
 
 `docker-compose exec --user root db /bin/bash`
 
-# Enter the Mongo Shell
+## Enter the Mongo Shell
 
 `docker-compose exec --user root db mongo`
 
-# Create a DB w/ User
+## Super User Authentication
+
+Username: `root`
+
+Password: `password`
+
+## Create a DB w/ User
 
 While in the shell, run the following:
 

mysql/README.md

@@ -1,14 +1,20 @@
-# Enter the Container w/ Bash
+## Enter the Container w/ Bash
 
 `docker-compose exec --user root db /bin/bash`
 
-# Enter the MySQL Shell
+## Enter the MySQL Shell
 
 `docker-compose exec --user root db mysql -u root -p`
 
 When prompted, enter `password` as the password. 
 
-# Create a DB
+## Super User Authentication
+
+Username: `root`
+
+Password: `password`
+
+## Create a DB
 
 While inside the shell, run the following:
 

postgres/README.md

@@ -1,12 +1,20 @@
-# Enter the Container w/ Bash
+# Postgres w/ Docker Compose
+
+## Enter the Container w/ Bash
 
 `docker-compose exec --user root db /bin/bash`
 
-# Enter the Postgres Shell
+## Enter the Postgres Shell
 
 `docker-compose exec --user root db psql -h localhost -U root`
 
-# Create a DB
+## Super User Authentication
+
+Username: `root`
+
+Password: `password`
+
+## Create a DB
 
 While inside the shell, run the following: