minor clarifications to setup (#98)

Co-authored-by: Bradley Miller <bmiller@Njord.local>

Makefile.paths.original

@@ -31,6 +31,9 @@
 
 # Provide full paths for three variables,
 # each without a trailing slash
+# Note:  In order to build the html version you should use the
+# absolute path (/users/oscar/Github/mathbook) and not the relative
+# path ../mathbook
 
 # PreTeXt distribution root
 # Example: PTX = ../mathbook  (or PTX = /users/oscar/GitHub/mathbook)
@@ -41,7 +44,7 @@ PTX =
 DMOI =
 
 # Products are built in subdirectories
-# of a "scratch" directory 
+# of a "scratch" directory
 # or use SCRATCH = $(DMOI) to build inside main repository.
 SCRATCH = $(DMOI)
 
@@ -54,7 +57,7 @@ SCRATCH = $(DMOI)
 ENGINE = pdflatex
 
 # PDF viewer (eg "open -a preview" on Mac)
-PDFVIEWER = 
+PDFVIEWER =
 
 # HTML viewer  (eg "open -a firefox", "open -a safari", on Mac)
 HTMLVIEWER = chrome

README.md

@@ -12,7 +12,7 @@ This text is written in [PreTeXt](http://mathbook.pugetsound.edu) (previously ca
 
 ### Preliminaries
 
-To compile from source, you will need a copy of the mathbook xsl stylesheets, as well as xsltproc, python, and make installed (should be easy on linux or MacOS, but also possible on Windows---see some [windows installation notes](http://mathbook.pugetsound.edu/doc/author-guide/html/windows-install-notes.html)).  
+To compile from source, you will need a copy of the mathbook xsl stylesheets, as well as xsltproc, python, LaTeX, and pdf2svg and make installed (should be easy on linux or MacOS, but also possible on Windows---see some [windows installation notes](http://mathbook.pugetsound.edu/doc/author-guide/html/windows-install-notes.html)).
 
 Earlier editions, that did not include WeBWorK problems were easy enough to compile using commands like `xsltproc --xinclude ../xsl/custom-latex.xsl ../ptx/dmoi.ptx`.  Now though, there are enough intermediate steps that I've written a make file that keeps everything together.  As long as you have all the tools installed, this should make things easy.
 
@@ -50,12 +50,12 @@ And then create the html:
 
 `make html`
 
-If you look in the makefile, you will see some shortcuts that combine some of these.  
+If you look in the makefile, you will see some shortcuts that combine some of these.
 
 
 ## Contributing
 
-Any and all suggestions to improve the text are welcome.  Thanks to those who have already pointed out typos/issues they have found.  If you would like to make a more substantial contribution, please contact me so we can discuss how best to proceed.  
+Any and all suggestions to improve the text are welcome.  Thanks to those who have already pointed out typos/issues they have found.  If you would like to make a more substantial contribution, please contact me so we can discuss how best to proceed.
 
 ## Previous editions