gitignore: no PDF or other generated files

.gitignore

@@ -5,7 +5,14 @@
 *.fls
 
 # ignore books and papers in the bibliography folder
+# they are not allowed to be uploaded to public servers
 bib/*.pdf
+bib/*.doc*
+
+# don't upload files that are produced (only source files)
+*.pdf
+!/Bachelorarbeit.pdf
+
 
 # keep VScode configs
 !.vscode/*