Publish slides for Reftable and Checks talks

Change-Id: I470c0f4c6af535e5b6a7fe033dc0763d750f9e38

sessions/first-class-ci-integration.md

diff --git a/sessions/first-class-ci-integration.md b/sessions/first-class-ci-integration.md
index bf4df9e..bc16a42 100644
--- a/sessions/first-class-ci-integration.md
+++ b/sessions/first-class-ci-integration.md
@@ -18,6 +18,8 @@
 and how we think that the approach would need to be extended to work for
 analyzers as well.
 
+[slides](https://storage.googleapis.com/gerrit-talks/summit/2019/checks-us2019-preso.pdf)
+
 *[Alice Kober-Sotzek, Google](../speakers.md#aliceks) (Summit in Europe)*
 
 *[Han-Wen Nienhuys, Google](../speakers.md#hanwen) (Summit in USA)*

sessions/jgit.md

diff --git a/sessions/jgit.md b/sessions/jgit.md
index 2d5d6b4..04accca 100644
--- a/sessions/jgit.md
+++ b/sessions/jgit.md
@@ -8,6 +8,9 @@
 (packfile-offloading, client-side reftables). This is also a good chance to talk
 about what we are looking forward in JGit in the near future.
 
+[slides on reftable](https://storage.googleapis.com/gerrit-talks/summit/2019/reftable-slides.pdf)
 
 *[Ivan Frade, Google](../speakers.md#ifrade) (Summit in USA)*
 
+*[Han-Wen Nienhuys, Google](../speakers.md#hanwen) (Summit in USA)*
+