diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..dce88a3
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diff --git a/LattePanda Case related file/.DS_Store b/LattePanda Case related file/.DS_Store
index 7c17d6c..a999eb0 100644
Binary files a/LattePanda Case related file/.DS_Store and b/LattePanda Case related file/.DS_Store differ
diff --git a/LattePanda Case related file/CAD/.DS_Store b/LattePanda Case related file/CAD/.DS_Store
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diff --git a/README.md b/README.md
index d369622..300cd45 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Contains the following:
 - Solidworks file
 - PDF file
 - Screenshot after rendering
-- LattePanda Case related file
+- LattePanda Case related file: Including the drawing files and assembly instructions
 
 ### To download, please click "Download ZIP"