[CSL-2209] Update bits of documentation about accessing API doc (now behind 8091)
[CSL-2209] Update bits of documentation about accessing API doc (now behind 8091)

input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype