Documentation/intro: nitpicks
Documentation/intro: nitpicks

o add spaces before and after /
o fix up paragraph break
  o remove duplication
  o Realign lines
o s/be update/be updated
o s/lifecyle/life cycle

Signed-off-by: Alexander Alemayhu <e46fc836cca3acec03944314d1457c2ae6c68ef3@alemayhu.com>

tgraf/cilium,cilium/cilium,gumpt/cilium,michi-covalent/cilium,scanf/cilium,mskarbek/cilium,gumpt/cilium,cilium-team/cilium,mskarbek/cilium,tgraf/cilium,tgraf/cilium,mskarbek/cilium,gumpt/cilium,eloycoto/cilium,eloycoto/cilium,gumpt/cilium,cilium/cilium,mskarbek/cilium,tklauser/cilium,tklauser/cilium,michi-covalent/cilium,tklauser/cilium,gumpt/cilium,eloycoto/cilium,mskarbek/cilium,scanf/cilium,tgraf/cilium,michi-covalent/cilium,scanf/cilium,cilium/cilium,tgraf/cilium,tklauser/cilium,cilium-team/cilium,scanf/cilium,michi-covalent/cilium,cilium/cilium,eloycoto/cilium,eloycoto/cilium,gumpt/cilium,scanf/cilium,michi-covalent/cilium,gumpt/cilium,eloycoto/cilium,cilium/cilium,scanf/cilium,eloycoto/cilium,tklauser/cilium,scanf/cilium,tgraf/cilium,mskarbek/cilium