Clean up some README language

Author: fergusstrange

README.md

@@ -29,22 +29,24 @@ go get -u github.com/fergusstrange/embedded-postgres
 
 This library aims to require as little configuration as possible, favouring overridable defaults
 
-| Configuration  | Default Value                               |
-| -------------- | ------------------------------------------- |
-| Username       | postgres                                    |
-| Password       | postgres                                    |
-| Database       | postgres                                    |
-| Version        | 12.1.0                                      |
-| RuntimePath    | $USER_HOME/.embedded-postgres-go/extracted  |
-| DataPath       | empty, results in *RuntimePath*/data        |
-| Port           | 5432                                        |
-| StartTimeout   | 15 Seconds                                  |
-
-The *RuntimePath* directory is erased and recreated on each start and therefor not
-suitable for persistent data. If a persistent data location is required, set
-*DataPath* to a directory outside of *RuntimePath*.
-If the *RuntimePath* directory is empty or already initialized but with an incompatible
-postgres version, it gets cleared and reinitialized.
+| Configuration  | Default Value                                   |
+| -------------- | -------------------------------------------     |
+| Username       | postgres                                        |
+| Password       | postgres                                        |
+| Database       | postgres                                        |
+| Version        | 12.1.0                                          |
+| RuntimePath    | $USER_HOME/.embedded-postgres-go/extracted      |
+| DataPath       | $USER_HOME/.embedded-postgres-go/extracted/data |
+| Port           | 5432                                            |
+| StartTimeout   | 15 Seconds                                      |
+
+The *RuntimePath* directory is erased and recreated at each `Start()` and therefore not
+suitable for persistent data.
+
+If a persistent data location is required, set *DataPath* to a directory outside *RuntimePath*.
+
+If the *RuntimePath* directory is empty or already initialized but with an incompatible postgres version,
+it will be removed and Postgres reinitialized.
 
 A single Postgres instance can be created, started and stopped as follows
 ```go