README: update example call to docker

Newer versions of the container image use the more sensible /workdir
instead of /home.

README.md

@@ -27,9 +27,9 @@ latexmk -pdf thesis
 You can also use a Docker image to compile the LaTeX source:
 
 ```bash
-docker run --rm -it -v $(pwd):/home danteev/texlive latexmk -pdf thesis.tex
+docker run --rm -it -v $(pwd):/workdir danteev/texlive latexmk -pdf thesis.tex
 
 # For continuous builds
-docker run --rm -it -v $(pwd):/home danteev/texlive latexmk -pdf -pvc thesis.tex
+docker run --rm -it -v $(pwd):/workdir danteev/texlive latexmk -pdf -pvc thesis.tex
 ```
- 
+ 
\ No newline at end of file