rm unused files

lectures/lecture-n-1/LICENSE

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-The MIT License (MIT)
-
-Copyright (c) 2014 Kenton Hamaluik
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

lectures/lecture-n-1/README.md

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-# lucid
-A modern Beamer theme you can use without installing dozens of CTAN packages.
-
-I really, really hate all PowerPoint-like programs but also dislike most Beamer templates, so back in my third year of university I invested one night in making my own.
-I didn't understand anything about CTAN packages, `.sty` files and `tikz` (and to a large extent I still don't), but [Beamer-Theme-Execushares](https://github.com/hamaluik/Beamer-Theme-Execushares) provided an excellent starting point and the resulting theme served me well throughout the last 5 years - I only recently switched to my current institution's (Språkbanken Text, University of Gothenburg) colors and logo and fixed a few things that kept annoying me. 
-There are still a few [issues](https://github.com/harisont/Beamer-mhthm/issues) I'd like to address, but because I find writing style files to be a nightmare PRs are more than ever welcome.  
-
-## Usage
-You can of course use lucid to write your presentations in LaTeX and compile them with `pdflatex`. 
-A fairly standard `texlive` installation should provide everything you need, as the only package required is `tikz`.
-
-### If you hate writing presentations in LaTeX
-However, __I warmly recommend that you write your presentations in Markdown and generate beamer slides with [pandoc](https://github.com/jgm/pandoc)__.
-This is a much easier way to obtain perfectly fine slides in 99% of the cases, and allows for LaTeX injections that fix the remaining 1% of things that you can't express in Markdown. 
-For instance, you can add a `\pause` wherever you want.
-
-I usually just write regular Markdown using `#` for each new section and `##` for each new slide, add a metadata section in the beginning of the file, for instance
-
-```yaml
----
-title: "The title"
-subtitle: "a possibly very long subtitle" # OPTIONAL
-author: "My Name" # OPTIONAL
-theme: "lucid"
-logo: "gu.png" # OPTIONAL - if present, it should as of now be the path to a 300x300 image
-date: "the date" # OPTIONAL - will appear on the title page on the bottom right
-institute: "Språkbanken Text, University of Gothenburg" # OPTIONAL
----
-```
-
-and then run 
-
-```
-pandoc slides.md -t beamer --slide-level 2 -o slides.pdf
-```
-
-to generate the PDF.
-
-See [`slides.pdf`](slides.pdf) for some example pandoc-generated slides and [`slides.md`](slides.md) to take a look at the very simple source code.
-
-For further information about the pandoc + beamer combo, I think [alexeygumirov](https://github.com/alexeygumirov/pandoc-beamer-how-to) is the most exhaustive source. A more compact tutorial is available [here](https://ashwinschronicles.github.io/beamer-slides-using-markdown-and-pandoc?utm_source=pocket_reader). 
-
-## Namesake
-In Italian, _lucidi_ is the word that indicates slides meant for old-fashioned overhead projectors.
-Not to mention that having a quick and simple way to generate acceptable-looking slides greatly helps me _mantenere la luciditá_ (stay sane).