Q: What's LaTeX? How can I learn it?

Q: How to install these templates?

Q: I get below errors during installation, how to solve it?

This is LuaTeX, Version beta-0.71.1-2011082016 (rev 4277)
LaTeX2e <2011/06/27>
LuaTeX adaptation of babel <v3.81-luatex-1.4> and hypenation patterns for loaded.
! I can't find file `l3docstrip.tex'.
l.22 \input l3docstrip.tex

Please type another input file name:

Q: I get below errors during compilation, how to solve it?

! LaTeX Error: Missing \begin{document}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H   for immediate help.

l.180 \changefont{linespread=1.3}


Q: I get other errors than mentioned above, what should I do?

Q: I want to contribute to this project, what should I do?