[docs] Fix a typo

llvm-svn: 258878
diff --git a/llvm/docs/HowToReleaseLLVM.rst b/llvm/docs/HowToReleaseLLVM.rst
index f9e5d06..f42acb7 100644
--- a/llvm/docs/HowToReleaseLLVM.rst
+++ b/llvm/docs/HowToReleaseLLVM.rst
@@ -342,7 +342,7 @@
 into any one of the llvm projects. To merge revision ``$N`` into project
 ``$PROJ``, do:
 
-#. ``svn co http://llvm.org/svn/llvm-project/$PROJ/branches/release_XX
+#. ``svn co https://llvm.org/svn/llvm-project/$PROJ/branches/release_XX
    $PROJ.src``
 
 #. ``$PROJ.src/utils/release/merge.sh --proj $PROJ --rev $N``