update version in readme
update version in readme

AaronO/nunjucks,internalfx/nunjucks,carljm/nunjucks,santoshsahoo/nunjucks,jlongster/nunjucks,AaronO/nunjucks,fabien/nunjucks,kevinschaul/nunjucks,AaronO/nunjucks,pardo/nunjucks,node-modules/nunjucks,carljm/nunjucks,atorkhov/nunjucks,internalfx/nunjucks,kevinschaul/nunjucks,fabien/nunjucks,punkave/nunjucks,vigetlabs/nunjucks,rhengles/nunjucks,robgraeber/nunjucks,punkave/nunjucks,robgraeber/nunjucks,popomore/nunjucks,carljm/nunjucks,AaronO/nunjucks,kevinschaul/nunjucks,oddbird/nunjucks,amyboyd/nunjucks,santoshsahoo/nunjucks,amyboyd/nunjucks,popomore/nunjucks,node-modules/nunjucks,pardo/nunjucks,carljm/nunjucks,node-modules/nunjucks,rhengles/nunjucks,vigetlabs/nunjucks,rhengles/nunjucks,rhengles/nunjucks,kevinschaul/nunjucks,oddbird/nunjucks,atorkhov/nunjucks,devoidfury/nunjucks,fabien/nunjucks,campbellwmorgan/nunjucks,campbellwmorgan/nunjucks,punkave/nunjucks,node-modules/nunjucks,campbellwmorgan/nunjucks,internalfx/nunjucks,amyboyd/nunjucks,vigetlabs/nunjucks,atorkhov/nunjucks,robgraeber/nunjucks,robgraeber/nunjucks,vigetlabs/nunjucks,mozilla/nunjucks,amyboyd/nunjucks,santoshsahoo/nunjucks,santoshsahoo/nunjucks,oddbird/nunjucks,oddbird/nunjucks,mozilla/nunjucks,pardo/nunjucks,jlongster/nunjucks,devoidfury/nunjucks,campbellwmorgan/nunjucks,pardo/nunjucks,jlongster/nunjucks,atorkhov/nunjucks,popomore/nunjucks,internalfx/nunjucks,mozilla/nunjucks,jlongster/nunjucks,devoidfury/nunjucks,fabien/nunjucks,punkave/nunjucks