diff --git a/sources/tech/20140530 Fix 'Cannot Add PPA' Error In Ubuntu 14.04 and Linux Mint.md b/sources/tech/20140530 Fix 'Cannot Add PPA' Error In Ubuntu 14.04 and Linux Mint.md
index 5b254f80c0..f7512e3ebf 100644
--- a/sources/tech/20140530 Fix 'Cannot Add PPA' Error In Ubuntu 14.04 and Linux Mint.md	
+++ b/sources/tech/20140530 Fix 'Cannot Add PPA' Error In Ubuntu 14.04 and Linux Mint.md	
@@ -1,3 +1,5 @@
+占坑。。。。
+
 Fix “Cannot Add PPA” Error In Ubuntu 14.04 & Linux Mint
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 ![](http://itsfoss.itsfoss.netdna-cdn.com/wp-content/uploads/2014/05/PPA_Error_Ubuntu.jpeg)