org.sigrok.PulseView.appdata.xml: Fix a few warnings.
I - org.sigrok.PulseView.appdata.xml:org.sigrok.PulseView.desktop:20
Consider using a secure (HTTPS) URL for 'http://sigrok.org/wiki/FAQ'
I - org.sigrok.PulseView.appdata.xml:org.sigrok.PulseView.desktop:19
Consider using a secure (HTTPS) URL for
'http://sigrok.org/bugzilla/enter_bug.cgi?format=guided&product=PulseView'
I - org.sigrok.PulseView.appdata.xml:org.sigrok.PulseView.desktop:18
Consider using a secure (HTTPS) URL for 'http://sigrok.org/wiki/PulseView'
I - org.sigrok.PulseView.appdata.xml:org.sigrok.PulseView.desktop:23
Consider using a secure (HTTPS) URL for
'http://sigrok.org/wimg/e/ee/PulseView_I2C_DS1307_Decode.png'
I - org.sigrok.PulseView.appdata.xml:org.sigrok.PulseView.desktop:10
First 'description/p' paragraph might be too short (< 80 characters).