chore(paper): add rendering help

.gitignore

@@ -9,4 +9,7 @@ docs/source/examples_gallery/
 docs/source/gen_modules/backreferences/
 docs/source/sg_execution_times.rst
 
-paper/pgf/
+# Papers build artifacts
+papers/eucap2024/pgf/
+papers/joss/paper.pdf
+papers/joss/paper.jats

papers/joss/README.md

@@ -0,0 +1,18 @@
+# JOSS Paper
+
+This folder contains the source files used to generate
+the paper we submitted to the
+[Journal of Open Source Software](https://joss.theoj.org/).
+
+You can generate a draft version of the PDF with:
+
+```bash
+docker run --rm \
+    --volume $PWD/papers/joss:/data \
+    --user $(id -u):$(id -g) \
+    --env JOURNAL=joss \
+    openjournals/inara
+```
+
+The `$PWD/papers/joss` assumes that you are running
+the command from the root directory of this repository.