docs: update version, add example usage, fix DSL example (#8)

documentation/tutorials/getting-started-with-ash-csv.md

@@ -7,7 +7,21 @@ AshCsv offers basic support for storing and reading resources from csv files.
 Add `ash_csv` to your list of dependencies in `mix.exs`:
 
 ```elixir
-{:ash_csv, "~> 0.9.7-rc.0"}
+{:ash_csv, "~> 0.9.7"}
 ```
 
-For information on how to configure it, see the [DSL documentation.](/documentation/dsls/DSL:-AshCsv.DataLayer.md)
+## Usage
+
+```
+defmodule MyApp.MyResource do
+  use Ash.Resource,
+    domain: MyApp,
+    data_layer: AshCsv.DataLayer
+
+  csv do
+    ... # see configuration options below
+  end
+end
+```
+
+For information on how to configure ash_csv, see the [DSL documentation.](/documentation/dsls/DSL:-AshCsv.DataLayer.md)

lib/ash_csv/data_layer.ex

@@ -32,7 +32,7 @@ defmodule AshCsv.DataLayer do
         file "priv/data/tags.csv"
         create? true
         header? true
-        separator '-'
+        separator ?;
         columns [:id, :name]
       end
       """