ReleaseNotes: update links to use https

llvm-svn: 341786
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index b215995..b526fd1 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -6,13 +6,13 @@
    :local:
    :depth: 2
 
-Written by the `LLVM Team <http://llvm.org/>`_
+Written by the `LLVM Team <https://llvm.org/>`_
 
 .. warning::
 
    These are in-progress notes for the upcoming Clang 8 release.
    Release notes for previous releases can be found on
-   `the Download Page <http://releases.llvm.org/download.html>`_.
+   `the Download Page <https://releases.llvm.org/download.html>`_.
 
 Introduction
 ============
@@ -22,18 +22,18 @@
 describe the status of Clang in some detail, including major
 improvements from the previous release and new feature work. For the
 general LLVM release notes, see `the LLVM
-documentation <http://llvm.org/docs/ReleaseNotes.html>`_. All LLVM
+documentation <https://llvm.org/docs/ReleaseNotes.html>`_. All LLVM
 releases may be downloaded from the `LLVM releases web
-site <http://llvm.org/releases/>`_.
+site <https://llvm.org/releases/>`_.
 
 For more information about Clang or LLVM, including information about the
-latest release, please see the `Clang Web Site <http://clang.llvm.org>`_ or the
-`LLVM Web Site <http://llvm.org>`_.
+latest release, please see the `Clang Web Site <https://clang.llvm.org>`_ or the
+`LLVM Web Site <https://llvm.org>`_.
 
 Note that if you are reading this file from a Subversion checkout or the
 main Clang web page, this document applies to the *next* release, not
 the current one. To see the release notes for a specific release, please
-see the `releases page <http://llvm.org/releases/>`_.
+see the `releases page <https://llvm.org/releases/>`_.
 
 What's New in Clang 8.0.0?
 ==========================
@@ -193,7 +193,7 @@
 ======================
 
 A wide variety of additional information is available on the `Clang web
-page <http://clang.llvm.org/>`_. The web page contains versions of the
+page <https://clang.llvm.org/>`_. The web page contains versions of the
 API documentation which are up-to-date with the Subversion version of
 the source code. You can access versions of these documents specific to
 this release by going into the "``clang/docs/``" directory in the Clang
@@ -201,4 +201,4 @@
 
 If you have any questions or comments about Clang, please feel free to
 contact us via the `mailing
-list <http://lists.llvm.org/mailman/listinfo/cfe-dev>`_.
+list <https://lists.llvm.org/mailman/listinfo/cfe-dev>`_.