[gnome-software.wiki] Update Software metadata

[Philip Withnall <pwithnall src gnome org>]

commit 004accb41e37ad4e9a1ec9891666f11236389687
Author: Philip Withnall <philip tecnocode co uk>
Date:   Fri Aug 20 15:15:42 2021 +0000

    Update Software metadata

 Software-metadata.md | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/Software-metadata.md b/Software-metadata.md
index 181e64a..9039a9d 100644
--- a/Software-metadata.md
+++ b/Software-metadata.md
@@ -16,6 +16,8 @@ Currently, the code looks at the following hardware. More may be supported in fu
 
 It’s not possible to reliably detect whether a gamepad is *present*, as they are often left disconnected due 
to not being needed for normal computer use.
 
+The dialog which appears when the tile is clicked lists the different hardware requirements of the app, and 
whether any of them are not met.
+
 <br clear="both"/>
 
 Age rating <a name="age-rating"></a>
@@ -24,7 +26,11 @@ Age rating <a name="age-rating"></a>
 
 <img align="right" src="uploads/a7b965b76fcbad2d0d59f48f27ef5b08/age-rating-tile.png">
 
-TODO
+GNOME Software displays an age rating tile on the details page for an application. This shows what age range 
the application should be suitable for, based on different kinds of content which the application has 
declared it contains. This information is summarised in a format similar to the game or film rating 
certificates for your country.
+
+For example, this will highlight whether a game contains violence, or whether an application contains in-app 
advertising.
+
+The dialog which appears when the tile is clicked lists the different types of content in the application 
and how severe that content is.
 
 <br clear="both"/>
 
@@ -34,7 +40,11 @@ Safety <a name="safety"></a>
 
 <img align="right" src="uploads/aa206d52d15b51e6304458a6b64cb21a/safety-tile.png">
 
-TODO
+GNOME Software displays a safety tile on the details page for an application. This summarises information 
about whether the app can be considered safe to install and run, or whether caution may be required before 
trusting it.
+
+This tile combines information about the permissions which the app requests when it runs (such as permission 
to read your files), with information about how the app was developed. Free software applications, where the 
source code is publicly readable, can be more secure than proprietary ones, as they can be audited.
+
+The dialog which appears when the tile is clicked lists the different permissions the app requests, plus 
some information about its license and runtime.
 
 <br clear="both"/>