Fix issue 2256 - doc grammar and typos in protocol-spec.md (#2259)
Fix issue 2256 - doc grammar and typos in protocol-spec.md (#2259)

* fixed some typos reported in #2256

fixed some typos reported in #2256

Fixes #2256

Signed-off-by: Christopher Ferris <b3041279349bcb20974a27fd07c65415cf2b925e@us.ibm.com>

* fix some grammar issues

fix some grammar issues

Signed-off-by: Christopher Ferris <b3041279349bcb20974a27fd07c65415cf2b925e@us.ibm.com>

popldo/fabric,ahuachen/fabric,angrbrd/fabric,bburgdave/fabric,andresgaragiola/fabric,ariccy/fabric,gennadylaventman/fabric,gromeroar/fabric,ahuachen/fabric,hyperledger-archives/fabric,bburgdave/fabric,gromeroar/fabric,bren3582/fabric,andresgaragiola/fabric,angrbrd/fabric,gromeroar/fabric,popldo/fabric,jjjjibm/fabric,gennadylaventman/fabric,angrbrd/fabric,openblockchain/obc-peer,andresgaragiola/fabric,hyperledger-archives/fabric,bren3582/fabric,bren3582/fabric,popldo/fabric,srderson/fabric,andresgaragiola/fabric,openblockchain/obc-peer,hyperledger-archives/fabric,bren3582/fabric,bburgdave/fabric,ariccy/fabric,angrbrd/fabric,angrbrd/fabric,ariccy/fabric,gennadylaventman/fabric,bren3582/fabric,gennadylaventman/fabric,ariccy/fabric,jjjjibm/fabric,gennadylaventman/fabric,gromeroar/fabric,srderson/fabric,ariccy/fabric,ahuachen/fabric,openblockchain/obc-peer,ariccy/fabric,jjjjibm/fabric,ahuachen/fabric,gromeroar/fabric,angrbrd/fabric,srderson/fabric,popldo/fabric,jjjjibm/fabric,gromeroar/fabric,jjjjibm/fabric,angrbrd/fabric,andresgaragiola/fabric,bren3582/fabric,andresgaragiola/fabric,srderson/fabric,hyperledger-archives/fabric,popldo/fabric,ahuachen/fabric,popldo/fabric,gennadylaventman/fabric,andresgaragiola/fabric,srderson/fabric,jjjjibm/fabric,popldo/fabric,hyperledger-archives/fabric,hyperledger-archives/fabric,ariccy/fabric,jjjjibm/fabric,gromeroar/fabric,bren3582/fabric,gennadylaventman/fabric,bburgdave/fabric,hyperledger-archives/fabric,srderson/fabric,srderson/fabric,bburgdave/fabric,ahuachen/fabric,ahuachen/fabric