gitignore appropriate jupyter files

.gitignore

@@ -1,6 +1,20 @@
 data_very_raw/
 zzz_raman_spectroscopy-main/
 
+# ---> JupyterNotebooks
+# gitignore template for Jupyter Notebooks
+# website: http://jupyter.org/
+
+.ipynb_checkpoints
+*/.ipynb_checkpoints/*
+
+# IPython
+profile_default/
+ipython_config.py
+
+# Remove previous ipynb_checkpoints
+#   git rm -r .ipynb_checkpoints/
+
 # ---> Python
 # Byte-compiled / optimized / DLL files
 __pycache__/