Add docs for "Data Config" (#261)

Author: mbtools

src/.vuepress/public/img/data-config-1.png

@@ -65,6 +65,7 @@ index: false
 - [Namespaces](reference/namespaces.md)
 - [Packages & Transports](reference/packages.md)
 - [Folders & Files](reference/folders-filenames.md)
+- [Data Config](reference/data-config.md)
 - [ABAP Language Version](reference/abap-language-version.md)
 - [Note Analyzer](reference/note-analyzer.md)
 - [APACK](reference/apack.md)

src/.vuepress/public/img/data-config-2.png

@@ -4,7 +4,7 @@ icon: book-open
 article: false
 index: false
 dir:
-    order: 50
+order: 50
 ---
 
 ## Catalog
@@ -18,6 +18,7 @@ dir:
 - [Namespaces](namespaces.md)
 - [Packages & Transports](packages.md)
 - [Folders & Files](folders-filenames.md)
+- [Data Config](data-config.md)
 - [ABAP Language Version](abap-language-version.md)
 - [Note Analyzer](note-analyzer.md)
 - [APACK](apack.md)

src/.vuepress/public/img/data-config-3.png

@@ -0,0 +1,35 @@
+---
+title: Data Config
+category: reference
+order: 79
+---
+
+## Data Config
+
+abapGit can serialize and deserialize data from any SAP table. The data is serialized in JSON format with the `TABU` object type.
+
+### Configuration
+
+From the "Repository View", use "Advanced > Data Config" to add the tables you want to include in your repository. Optionally, you can specify if initial values should be serialized, and provide a where condition to filter the data.
+
+:::warning 
+For safety reasons, by default only customer-defined customizing tables are supported.
+
+You can allow other tables using a [exit `CHANGE_SUPPORTED_DATA_OBJECTS`](exits.md).
+:::
+
+![](/img/data-config-4.png)
+
+![](/img/data-config-5.png)
+
+### Result
+
+For each table, two JSON files are created: One for the configuration (table name and where clause), and one for the data.
+
+![](/img/data-config-6.png)
+
+![](/img/data-config-1.png)
+
+![](/img/data-config-2.png)
+
+![](/img/data-config-3.png)