deletions | additions       diff --git a/very useful to know about it.tex b/very useful to know about it.tex  index 8b0fa18..97662e0 100644  --- a/very useful to know about it.tex  +++ b/very useful to know about it.tex 
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It's quite handy to use...now we dont don't  have to worry about learning all the syntax in Latex. Die LaTeX. You can lock a block - block-lock.