Minor storage page update (#142)

Explains that the first version of this does not allow for data directory editing, and that this is added at a later point. Also updated the mock-ups, which did not have the data directory setting yet.

Author: GBKS

assets/images/settings/storage-big.png

@@ -8,7 +8,7 @@ indent: true
 
 # Storage settings
 
-Let's users define how much data the application should use. Also accessible in [first use]({{ '/first-use/' | relative_url }}).
+Lets users define how much data the application should use, and where the data should be stored. This screen is also accessible during [first use]({{ '/first-use/' | relative_url }}).
 
 {% include picture.html
 	image = "/assets/images/settings/storage.png"
@@ -19,4 +19,15 @@ Let's users define how much data the application should use. Also accessible in
 	height = 712
 %}
 
+In the initial implementation, the data directory is not editable. This will be added at a later time, see below. For details, see [this discussion](https://github.com/BitcoinDesign/Bitcoin-Core-App/issues/102#issuecomment-2075242035){:target="_blank"}.
+
+{% include picture.html
+	image = "/assets/images/settings/storage-edit-data-dir.png"
+	retina = "/assets/images/settings/storage-edit-data-dir@2x.png"
+	big = "/assets/images/settings/storage-edit-data-dir-big.png"
+	alt-text = "Screen with basic storage settings & editable data directory"
+	width = 800
+	height = 712
+%}
+