gsettings schema is not valid

[Pim Vullers]

The cmake configure fails with the following message:

org.elementary.scratch.gschema.xml:
  Error on line 149 char 1: Element <summary> not allowed inside <summary>.
  This entire file has been ignored.

This is the corresponding code snippet:
        <key name="make-backup" type="b">
            <default>true</default>
            <summary>Save or not the backup copy for the files.<summary>
            <description>Save or not the file's backup. DON'T SET IT AS FALSE or you will break some Scratch's functions</description>
        </key>

Clearly there is a / missing in the clossing summary tag. Could you please fix this?