diff --git a/.gitignore b/.gitignore
index d3e84cb4c40dfcbdd8b1405e6d38255e6186c28b..b5dd4862bece75300df715ef030ff8f24fa490fe 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ _site
 .jekyll-metadata
 vendor
 .bundle/config
+.DS_Store
diff --git a/images/posts/CSR-Conference-poster-JavaScript.pdf b/images/posts/CSR-Conference-poster-JavaScript.pdf
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diff --git a/slides/.DS_Store b/slides/.DS_Store
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diff --git a/images/posts/Sampaio-Automatic-JavaScript.pdf b/slides/Sampaio-Automatic-JavaScript.pdf
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diff --git a/images/posts/Xiong-Concurrent.pdf b/slides/Xiong-Concurrent.pdf
similarity index 100%
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rename to slides/Xiong-Concurrent.pdf