Add troubleshooting page

[ChucklesOnGitHub]

It could have the following:

1. Where to ask for support (currently in the FAQ section)
2. How to ask for support. Some ideas:

For troubleshooting GUI issues, always remember to provide:

• A full description of your issue, including screenshots or screen captures to help understand what is going on.
• A copy of the complete text in the debug console (copy & paste the contents from the console window that opens at the same time as the GUI). This lists all the steps that were performed in the GUI during the current session. If the GUI crashed and the console window shut down, then please send the activity log file. You can find the activity log file in the following folder: C:\ProgramData\Open Ephys\configs-api8.
• The saved config file (the settings.xml file from your recording, in the Record Node folder) to help diagnose any issues with the signal chain.

Check that this is the same as in the popup that comes up when there is a crash.

3. Other common issues and how to possibly fix them (@anjaldoshi has ideas on this)