Update documentation to new name

[franccesco]

Update the documentation to reflect the changes on the new name (GSA) instead of the old one (GetAltName or GAN)

[coveralls]

Pull Request Test Coverage Report for Build 64

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 93.289%

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Totals
Change from base Build 61:	0.0%
Covered Lines:	139
Relevant Lines:	149

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💛 - Coveralls