The Stacks project

Fix statement Jacobi-Zariski sequence

Thanks to Et
https://stacks.math.columbia.edu/tag/00S2#comment-8327
https://stacks.math.columbia.edu/tag/00S2#comment-8474

Typos in algebra.tex

Thanks to Keenan Kidwell
http://stacks.math.columbia.edu/tag/00O2#comment-689
http://stacks.math.columbia.edu/tag/065R#comment-690
http://stacks.math.columbia.edu/tag/0519#comment-691
http://stacks.math.columbia.edu/tag/00S0#comment-692
http://stacks.math.columbia.edu/tag/00S1#comment-693
http://stacks.math.columbia.edu/tag/00S2#comment-694
http://stacks.math.columbia.edu/tag/08JZ#comment-701

New macro: \NL for naive cotangent complex

The naive cotangent complex is an important ingredient to several
topics discussed in the Stacks project. It deserves its own macro.

Relationship geometric regularity and L

	Faltings argument + more. To be added later: Relationship with
	formal smoothness (for topological rings.

Improve section on naive cotangent complex

	In two ways:
		-- handle non-finite type maps
		-- use the canonical presentation A[B] ---> B in order
		to define some definite version of the complex.

Latex: get rid of some overfull boxes

	modified:   algebra.tex
	modified:   categories.tex
	modified:   sets.tex
	modified:   sheaves.tex

Started tags infrastructure

	new file:   scripts/add_tags.py
	modified:   scripts/functions.py
	new file:   tags/initial_tags
	new file:   tags/tags

More fun etale ring map stuff

	modified:   algebra.tex