MSTG-NETWORK-1 Added clearText Traffic Info

[TheDauntless]

Thank you for submitting a Pull Request to the Mobile Security Testing Guide. Please make sure that:

• Your contribution is written in the 2nd person (e.g. you)
• Your contribution is written in an active present form for as much as possible.
• You have made sure that the reference section is up to date (e.g. please add sources you have used, make sure that the references to MITRE/MASVS/etc. are up to date)
• Your contribution has proper formatted markdown and/or code
• Any references to website have been formatted as [TEXT](URL “NAME”)
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This PR closes #2008

[cpholguera]

Thanks @TheDauntless, one first comment before reviewing the content itself. Could you please put all code-like elements in backticks? e.g. android:... or <application>.

Why XML elements have a \ preceding them?

See https://github.com/OWASP/owasp-mstg/blob/master/style_guide.md#in-text-keywords

[cpholguera]

Thanks @TheDauntless, here are a couple of comments and suggestions. Please take a look :)

[TheDauntless]

All comments have been processed. I would prefer to link to a dedicated section on cross-platform frameworks, but since we don't have that one, I'm fine with giving an example for now.

[cpholguera]

One last thing :)

[cpholguera]

Thanks @TheDauntless 🎉