diff --git a/circup.py b/circup.py
index 30a7908..5d368c0 100644
--- a/circup.py
+++ b/circup.py
@@ -44,7 +44,7 @@ __email__ = "ntoll@ntoll.org"
 
 #: The unique USB vendor ID for Adafruit boards.
 VENDOR_ID = 9114
-#: The regex used to extract __version__ and __repo__ assignments within code.
+#: The regex used to extract ``__version__`` and ``__repo__`` assignments.
 DUNDER_ASSIGN_RE = re.compile(r"""^__\w+__\s*=\s*['"].+['"]$""")
 
 
@@ -126,7 +126,6 @@ def get_repos_file(repository, filename):
     :param str repository: The full path to the GitHub repository.
     :param str filename: The name of the file within the GitHub repository.
     :return: The content of the file.
-    :raises ValueError: if the repository or filename is unknown.
     """
     # Extract the repository's path for the GitHub API.
     owner, repos_name = repository.split("/")[-2:]
diff --git a/docs/conf.py b/docs/conf.py
index ac1f783..b3e55b7 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -59,3 +59,21 @@ html_theme = 'alabaster'
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
+
+html_logo = 'logo.png'
+
+html_theme_options = {
+    'description': "The CircuitPython Library Updater",
+    'logo_name': True,
+    'logo_text_align': 'center',
+    'github_user': 'adafruit',
+    'github_repo': 'circup',
+    'page_width': '1200px',
+}
+
+html_sidebars = {
+    '**': [
+        'about.html',
+        'searchbox.html',
+    ]
+}
diff --git a/docs/logo.png b/docs/logo.png
new file mode 100644
index 0000000..663ae44
Binary files /dev/null and b/docs/logo.png differ