diff --git a/sources/talk/20180831 How to Create a Slideshow of Photos in Ubuntu 18.04 and other Linux Distributions.md b/sources/tech/20180831 How to Create a Slideshow of Photos in Ubuntu 18.04 and other Linux Distributions.md
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rename from sources/talk/20180831 How to Create a Slideshow of Photos in Ubuntu 18.04 and other Linux Distributions.md
rename to sources/tech/20180831 How to Create a Slideshow of Photos in Ubuntu 18.04 and other Linux Distributions.md