Editorial change: fix anchor to Components.securitySchemes

[char0n]

The anchor is pointing to Security Scheme Object definition instead of Components.securitySchemes

[ralfhandl]

@char0n Thanks for catching this unintended duplicate anchor!

Unfortunately this means that some of the references to this anchor need to be changed to still point here, most likely all except the ones in this line.

[char0n]

@ralfhandl thanks. Amended all appropriate references.