Fix typos, add summaries for DDPM and DDIM <|CONV|> #157

	name: Pandoc conversion & gdrive upload

	on:
	push:
	branches:
	- main

	jobs:
	convert_via_pandoc:
	if: contains(github.event.head_commit.message, '<\|CONV\|>')
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: create file list
	id: files_list
	run: \|
	mkdir lecture_pdf # create output dir
	# this will also include README.md
	cd lecture_source; echo "files=$(printf '%s ' *.md)" > $GITHUB_OUTPUT; cd ../

	- uses: docker://pandoc/latex:3.1.1-ubuntu
	with:
	entrypoint: /bin/bash
	args: -lc "apt-get update; apt-get install -y ghostscript; for i in $(cat pkglist); do tlmgr install $i; done; cd lecture_source; for document in ${{steps.files_list.outputs.files}}; do /usr/local/bin/pandoc -t beamer -o ../lecture_pdf/${document/.md/.pdf} --citeproc --bibliography=${document/.md/.bib} --slide-level 2 $document; done"
	- uses: adityak74/google-drive-upload-git-action@main
	with:
	filename: lecture_pdf/*
	credentials: ${{secrets.GDRIVE_UPLOAD}}
	overwrite: "true"
	folderId: 1S_WgFtfvz-Tw1a7TMupgg0s2GoO_0ZHv

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