Updated docs build to use cog

docsrc/README.md

@@ -2,12 +2,17 @@
 
 I'm still trying to learn sphinx and come up with a workflow for building docs.  Right now it's pretty kludgy.
 
-- `pip install sphinx`
-- `pip install sphinx-rtd-theme`
-- `pip install m2r2`
+- `python3 -m pip -r dev_requirements.txt`
 - Download and install [MacTeX](https://tug.org/mactex/)
 - Add `/Library/TeX/texbin` to your `$PATH`
 - `cd docs`
 - `make html`
 - `make latexpdf`
 - `cp _build/latex/osxphotos.pdf .`
+
+The `build.sh` script in the main repo directory will build the documents for you and is the preferred way to build the docs.
+
+The following files are generated by `build.sh` and should not be directly edited:
+
+- source/template_help.rst
+- source/tutorial.rst