Fix minor changes (#6)

* Add OpenCAPIF 2.0 support in list of releases supported (only in doc, testing to be conducted),
* Update sdk_configuration.md
* Fix authorization typo and update sdk config doc.
* Mistakes fixed related to OpenCAPIF SDK review
* Highlighted missing variables, functions and files,
* Removed AEF Security API support from Known issues, since it is already implemented.

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Co-authored-by: Daniel García <daniel.garciasanchez@telefonica.com>
Co-authored-by: JorgeEcheva26 <jorge.echevarriauribarri.practicas@telefonica.es>