diff --git a/tutorials/.~lock.matrix_cheatsheet_only.html# b/tutorials/.~lock.matrix_cheatsheet_only.html#
deleted file mode 100644
index fda9341..0000000
--- a/tutorials/.~lock.matrix_cheatsheet_only.html#
+++ /dev/null
@@ -1 +0,0 @@
-,sebastian,Macintosh.local,16.06.2014 22:50,file:///Users/sebastian/Library/Application%20Support/LibreOffice/4;
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index 3f81405..659d121 100644
--- a/tutorials/matrix_cheatsheet_only.html
+++ b/tutorials/matrix_cheatsheet_only.html
@@ -5,7 +5,7 @@
-
+