Fix typo in `install-ubuntu.md`
Fix typo in `install-ubuntu.md`

Closes #5100.

PiperOrigin-RevId: 195078092

bazelbuild/bazel,meteorcloudy/bazel,dropbox/bazel,meteorcloudy/bazel,ulfjack/bazel,dslomov/bazel,dropbox/bazel,perezd/bazel,akira-baruah/bazel,ulfjack/bazel,akira-baruah/bazel,katre/bazel,akira-baruah/bazel,bazelbuild/bazel,dslomov/bazel-windows,dslomov/bazel-windows,dslomov/bazel,safarmer/bazel,werkt/bazel,meteorcloudy/bazel,ulfjack/bazel,davidzchen/bazel,dslomov/bazel-windows,twitter-forks/bazel,aehlig/bazel,dslomov/bazel-windows,aehlig/bazel,perezd/bazel,cushon/bazel,twitter-forks/bazel,safarmer/bazel,meteorcloudy/bazel,twitter-forks/bazel,katre/bazel,akira-baruah/bazel,ulfjack/bazel,dslomov/bazel-windows,twitter-forks/bazel,cushon/bazel,ButterflyNetwork/bazel,twitter-forks/bazel,akira-baruah/bazel,davidzchen/bazel,katre/bazel,ButterflyNetwork/bazel,aehlig/bazel,aehlig/bazel,davidzchen/bazel,werkt/bazel,werkt/bazel,ButterflyNetwork/bazel,aehlig/bazel,cushon/bazel,bazelbuild/bazel,dslomov/bazel,dslomov/bazel,werkt/bazel,aehlig/bazel,cushon/bazel,dropbox/bazel,aehlig/bazel,safarmer/bazel,dropbox/bazel,cushon/bazel,werkt/bazel,perezd/bazel,safarmer/bazel,davidzchen/bazel,dslomov/bazel,safarmer/bazel,perezd/bazel,davidzchen/bazel,dslomov/bazel,meteorcloudy/bazel,perezd/bazel,bazelbuild/bazel,werkt/bazel,katre/bazel,katre/bazel,davidzchen/bazel,perezd/bazel,dropbox/bazel,ulfjack/bazel,bazelbuild/bazel,meteorcloudy/bazel,safarmer/bazel,dslomov/bazel-windows,dropbox/bazel,ulfjack/bazel,meteorcloudy/bazel,twitter-forks/bazel,ButterflyNetwork/bazel,akira-baruah/bazel,perezd/bazel,ButterflyNetwork/bazel,bazelbuild/bazel,twitter-forks/bazel,ulfjack/bazel,cushon/bazel,ButterflyNetwork/bazel,katre/bazel,dslomov/bazel,davidzchen/bazel