Some minor tweaks to examples in the README.
Some minor tweaks to examples in the README.

Fixed one expect() -> expect{} for raiseException matcher.

msdgwzhy6/Nimble,rbeeger/Nimble,mrackwitz/Nimble,romankl/Nimble,dgdosen/Nimble,gfontenot/Nimble,alexbasson/Nimble,feinstruktur/Nimble,DanielAsher/Nimble,NatashaTheRobot/Nimble,octo-technology/Nimble,vtongcoder/Nimble,NatashaTheRobot/Nimble,mrackwitz/Nimble,alexbasson/Nimble,jrmiddle/Nimble,dgdosen/Nimble,ScottRobbins/Nimble,DanielAsher/Nimble,briancroom/Nimble,romankl/Nimble,Quick/Nimble,twobitlabs/Nimble,romankl/Nimble,nikita-leonov/Nimble,jeffh/Nimble,joemasilotti/Nimble,Quick/Nimble,twobitlabs/Nimble,alvinvarghese/Nimble,feinstruktur/Nimble,feinstruktur/Nimble,twobitlabs/Nimble,jeffh/Nimble,AnthonyMDev/Nimble,abbeycode/Nimble,octo-technology/Nimble,ashfurrow/Nimble,abbeycode/Nimble,alexbasson/Nimble,vtongcoder/Nimble,nikita-leonov/Nimble,abbeycode/Nimble,alexbasson/Nimble,jeffh/Nimble,mrackwitz/Nimble,romankl/Nimble,dgdosen/Nimble,phatblat/Nimble,rbeeger/Nimble,jrmiddle/Nimble,briancroom/Nimble,briancroom/Nimble,gfontenot/Nimble,mishimay/Nimble,jeffh/Nimble,ashfurrow/Nimble,mishimay/Nimble,rbeeger/Nimble,msdgwzhy6/Nimble,joemasilotti/Nimble,rbeeger/Nimble,joemasilotti/Nimble,msdgwzhy6/Nimble,phatblat/Nimble,mrackwitz/Nimble,octo-technology/Nimble,jrmiddle/Nimble,ScottRobbins/Nimble,ScottRobbins/Nimble,alvinvarghese/Nimble,briancroom/Nimble,jrmiddle/Nimble,mishimay/Nimble,gfontenot/Nimble,Quick/Nimble,vtongcoder/Nimble,NatashaTheRobot/Nimble,alvinvarghese/Nimble,phatblat/Nimble,nikita-leonov/Nimble,msdgwzhy6/Nimble,dgdosen/Nimble,NatashaTheRobot/Nimble,gfontenot/Nimble,ashfurrow/Nimble,alvinvarghese/Nimble,octo-technology/Nimble,DanielAsher/Nimble,AnthonyMDev/Nimble,AnthonyMDev/Nimble,abbeycode/Nimble