With jekyll installed,
jekyll serve -w
brew install rbenv/tap/[email protected] # installed openssl 1.0.2t
PKG_CONFIG_PATH=/usr/local/Cellar/[email protected]/1.0.2t/lib/pkgconfig rvm install 2.4 --with-openssl-dir=/usr/local/Cellar/[email protected]/1.0.2t --with-openssl-lib=/usr/local/Cellar/[email protected]/1.0.2t/lib --with-openssl-include=/usr/local/Cellar/[email protected]/1.0.2t/include --rubygems ignore