Add missing words in sentence & change jekyll watch instruction.
Add missing words in sentence & change jekyll watch instruction.

(cherry picked from commit 5b482d7e7acd700967a0c067f6ee043cffbc2cac)

ilionic/ilionic.github.io,ilionic/ilionic.github.io,dennis-tra/trtwn-jekyll,dennis-tra/trtwn-jekyll,sonamsingh19/blog,sonamsingh19/blog,ilionic/ilionic.github.io,dennis-tra/trtwn-jekyll,sonamsingh19/blog