chore(docs): add FIXME comments for module docstrings

src/paper1_code/load/g16.py

@@ -1,5 +1,7 @@
 """Load Gregory et al. (2016) data."""
 
+# FIXME: add doi.
+
 import pathlib
 import sys
 from typing import Literal, Self

src/paper1_code/load/j05.py

@@ -1,5 +1,7 @@
 """Load Jones et al. (2005) data."""
 
+# FIXME: add doi.
+
 
 def get_so2_j05() -> float:
     """Based on the paper by Jones et al. (2005).

src/paper1_code/load/m20.py

@@ -3,6 +3,8 @@
 See ...
 """
 
+# FIXME: add doi.
+
 import datetime
 import pathlib
 

src/paper1_code/load/ob16.py

@@ -1,5 +1,7 @@
 """Load Otto-Bliesner et al. 2016 data."""
 
+# FIXME: add doi.
+
 import datetime
 import itertools
 import pathlib

src/paper1_code/load/pinatubo.py

@@ -1,5 +1,7 @@
 """Load Mt. Pinatubo data."""
 
+# FIXME: add doi.
+
 
 def get_so2_pinatubo() -> float:
     """Get SO2 injected values based on observational data.

src/paper1_code/load/t10.py

@@ -1,5 +1,7 @@
 """Load Timmreck et al. 2010 data."""
 
+# FIXME: add doi.
+
 
 def get_so2_t10() -> float:
     """Based on the paper by Timmreck et al. (2010).

src/paper1_code/load/tambora.py

@@ -1,5 +1,7 @@
 """Load Mt. Tambora data."""
 
+# FIXME: add doi.
+
 
 def get_so2_tambora() -> float:
     """Get the SO2 injection used in VolMIP volc-long-eq for the Tambora eruption.