FMSLogo Code

Add some extra instructions to build the CHM for the Spanish version on Windows.
(Up until now, I have been writing the manual on GNU/Linux and had never built the CHM).

Use singular "Ejemplo" for consistency with the English manual.

Add a missing period.

Translate the documentation for WORD into Spanish.
This is mostly based on Rosario Ruiz' translation of the MSWLogo manual.

Translate the Data Structure titles to Spanish.
This was based on Rosario Ruiz's translation of the MSWLogo manual.

Fix grammar error "runs that those" -> "runs those"

Correct a misuse of a standard term: "workspace" is the place where
definitions are stored, not where the turtle draws.

Translate the "Language Mechanics" chapter into Spanish.
Much of the content was taken from Rosario Ruiz's translation
of the MSWLogo manual.

Fix a grammar error ("buscar X", not "buscar para X")

Remove an extraneous "para" to fix a grammatical error