change TOC.md

[andrecastro0o]

We are trying to introduce small changes in the TOC, as for example including a new section - Colophon - to the TOC.

# [00 Colophon](docs/00_colophon.md) 
# [01 Introduction](docs/01_introduction.md)

This change, when we make a pdf trows error 43:

/Hybrid-Publishing-Toolkit-for-the-Arts make toolkit.pdf

# scripts/expand_toc.py TOC.md --section-pages --filter scripts/chapter.sh > toolkit.md
scripts/expand_toc.py TOC.md --no-toc > toolkit.md
cd docs && pandoc \
        --self-contained \
    --epub-metadata=../metadata.xml \
        --default-image-extension png \
        --epub-stylesheet=../styles.epub.css \
    --table-of-contents \
        -o ../toolkit.pdf \
        ../title.txt -H ../patch.tex ../toolkit.md
pandoc: Duplicate note reference `2' "source" (line 1367, column 1)
pandoc: Duplicate note reference `1' "source" (line 1366, column 1)
! Package inputenc Error: Unicode char \u8:́ not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type  H <return>  for immediate help.
 ...
l.82 Kimmy SpreeuwenbergDesign EPUB: André
Try running pandoc with --latex-engine=xelatex.
pandoc: Error producing PDF from TeX source
make: *** [toolkit.pdf] Error 43 ```