diff --git a/causalpy/pymc_experiments.py b/causalpy/pymc_experiments.py
index e4efb83a..16289273 100644
--- a/causalpy/pymc_experiments.py
+++ b/causalpy/pymc_experiments.py
@@ -958,6 +958,28 @@ def summary(self) -> None:
 
 
 class RegressionKink(ExperimentalDesign):
+    """
+    A class to analyse sharp regression kink experiments.
+
+    :param data:
+        A pandas dataframe
+    :param formula:
+        A statistical model formula
+    :param kink_point:
+        A scalar threshold value at which there is a change in the first derivative of
+        the assignment function
+    :param model:
+        A PyMC model
+    :param running_variable_name:
+        The name of the predictor variable that the kink_point is based upon
+    :param epsilon:
+        A small scalar value which determines how far above and below the kink point to
+        evaluate the causal impact.
+    :param bandwidth:
+        Data outside of the bandwidth (relative to the discontinuity) is not used to fit
+        the model.
+    """
+
     def __init__(
         self,
         data: pd.DataFrame,
diff --git a/docs/source/_static/interrogate_badge.svg b/docs/source/_static/interrogate_badge.svg
index 90d8153e..5b67d546 100644
--- a/docs/source/_static/interrogate_badge.svg
+++ b/docs/source/_static/interrogate_badge.svg
@@ -1,5 +1,5 @@
 <svg width="140" height="20" viewBox="0 0 140 20" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;">
-    <title>interrogate: 96.7%</title>
+    <title>interrogate: 97.4%</title>
     <g transform="matrix(1,0,0,1,22,0)">
         <g id="backgrounds" transform="matrix(1.32789,0,0,1,-22.3892,0)">
             <rect x="0" y="0" width="71" height="20" style="fill:rgb(85,85,85);"/>
@@ -12,8 +12,8 @@
     <g fill="#fff" text-anchor="middle" font-family="DejaVu Sans,Verdana,Geneva,sans-serif" font-size="110">
         <text x="590" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="610">interrogate</text>
         <text x="590" y="140" transform="scale(.1)" textLength="610">interrogate</text>
-        <text x="1160" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="370" data-interrogate="result">96.7%</text>
-        <text x="1160" y="140" transform="scale(.1)" textLength="370" data-interrogate="result">96.7%</text>
+        <text x="1160" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="370" data-interrogate="result">97.4%</text>
+        <text x="1160" y="140" transform="scale(.1)" textLength="370" data-interrogate="result">97.4%</text>
     </g>
     <g id="logo-shadow" serif:id="logo shadow" transform="matrix(0.854876,0,0,0.854876,-6.73514,1.732)">
         <g transform="matrix(0.299012,0,0,0.299012,9.70229,-6.68582)">