let GitLab CI create the PDFs

.gitignore

@@ -4,3 +4,4 @@
 *.log
 *.out
 *.toc
+figure/

README.md

@@ -14,6 +14,19 @@ You want to have the following things installed in order to use this template:
 
 ## HowTo
 
+### Using GitLab CI
+
+The GitLab CI server will automatically create the PDF output based on the
+`gitlab-ci.yml` file.
+If need be, edit this file in your fork (e.g. to kick out one of the two
+language versions).
+
+You can take a look at the compiled output here:
+https://git.imp.fu-berlin.de/agse/teaching-empir-report/-/jobs/artifacts/master/browse?job=compile
+
+
+### Manually
+
 To create a PDF file manually (i.e. if you don't use a LaTeX frontend), you need
 to call:
  * `Rscript -e "library(knitr); knit('report_en.Rnw')"`
@@ -22,11 +35,12 @@ to call:
  * `pdflatex report_en`
  * `pdflatex report_en`
 
-There is also a German version of the report remplate called `report_de.Rnw`.
+There is also a German version of the report template called `report_de.Rnw`.
 
 **Attention**: There are problems with BibTeX if you are using RStudio. It seems
 not work from within RStudio so you need to resort to the manual file creation.
 
+
 ## Good to know
 
 The two templates both use the same document class `agse-empir-report` which