Bug: fix objective 3 - update question hints

[FlyingToto]

Objective 3, question about updating, the hint does not cover the question about limiting versions of AAPS after a new release:

specifically:

    <string name="whatistrue">Check all correct answers.</string>
    <string name="update_git">You need to have Git installed and configured on your computer.</string>
    **<string name="update_asap">When updated versions of AndroidAPS are released, the earlier versions may be remotely limited after a specified time.</string>**
    <string name="update_keys">You should save and note the location of your keystore and use the same signing key for updates as for your previous installation.</string>
    <string name="update_neverupdate">Never update if the system is working well.</string>
    <string name="update_askfriend">If you have difficulty building the apk, you can install an apk that has been built by a friend.</string>
    **<string name="update_hint1">https://androidaps.readthedocs.io/en/latest/EN/Installing-AndroidAPS/Update-to-new-version.html#update-to-a-new-version-or-branch</string>**

2 proposed solutions: 1) add a second hint: <string name="update_hint2">https://androidaps.readthedocs.io/en/latest/Installing-AndroidAPS/Releasenotes.html#android-version-and-aaps-version</string>

2) modify the documentation page in hint1 by adding: "_You will receive the following information as soon as a new update is available:

Update info Then you have 60 days to update. If you do not update within these 60 days AAPS will fall back to LGS (low glucose suspend - see glossary) as in objective 6.

If you do not update for another 30 days (90 days from new release date) AAPS will switch to Open Loop._"

[CeDoMain]

I think an hint to read the english documentation, expecially if you have problems to find the correct answer, would be good.

I use the german version and had the problem that the german wiki does not answer all questions. Some answers i tried up to 8 times. Then i read the englisch wiki and see the solution.