diff --git a/source/conf.py b/source/conf.py
index e03cb71..6d9cf02 100644
--- a/source/conf.py
+++ b/source/conf.py
@@ -25,4 +25,4 @@ exclude_patterns = []
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
 
 html_theme = 'sphinx_rtd_theme'
-html_static_path = ['_static']
+#html_static_path = ['_static']
diff --git a/source/electronics/resistors.rst b/source/electronics/resistors.rst
new file mode 100644
index 0000000..51dbcea
--- /dev/null
+++ b/source/electronics/resistors.rst
@@ -0,0 +1,2 @@
+Resistors
+===================
diff --git a/source/index.rst b/source/index.rst
index ae46ff6..8982486 100644
--- a/source/index.rst
+++ b/source/index.rst
@@ -28,6 +28,13 @@ Welcome to ScienceNotes's documentation!
    signal_processing/fourier_tables.rst
    signal_processing/dft.rst
 
+.. toctree::
+   :maxdepth: 2
+   :numbered:
+   :caption: Electronics
+
+   electronics/resistors.rst
+
 Indices and tables
 ==================