Updated 'Getting Started' to use valid git links (added trailing slashes)

Reviewers: pcc, asl, tonic

Reviewed By: pcc

Subscribers: llvm-commits, kcc

Differential Revision: https://reviews.llvm.org/D38516

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316352 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed