The Stacks project

Try to use L/K notation for field extensions

We could also try to consistenly use "field extension" and not just
"extension" and consistently use "ring extension", etc.

Add reference Japanese ring to EGA

THanks to Ariyan Javanpeykar
https://stacks.math.columbia.edu/tag/032F#comment-2747

Split out Japanes + Nagata section

Also, we try to use N-2 instead of Japanese.

Spell checking algebra.tex

Added new tags

	modified:   tags/tags

Starting to write more algebra:
	Transcendence degree of field extensions
	Separability of field extensions
	Modified section on base change of algebras over fields
	Formal smoothness for extensions of fields
	Cohen rings
	Cohen structure theorem
	Nagata rings
	Japanese rings
	Ascent of normality

	modified:   algebra.tex