typo

README.md

@@ -38,7 +38,7 @@ output = spline_conv(src, edge_index, pseudo, weight, kernel_size,
                      is_open_spline, degree=1, root_weight=None, bias=None)
 ```
 
-Applies the spline-based convolutional operator
+Applies the spline-based convolution operator
 <p align="center">
   <img width="50%" src="https://user-images.githubusercontent.com/6945922/38684093-36d9c52e-3e6f-11e8-9021-db054223c6b9.png" />
 </p>

torch_spline_conv/conv.py

@@ -17,7 +17,7 @@ def spline_conv(src,
                 degree=1,
                 root_weight=None,
                 bias=None):
-    """Applies the spline-based convolutional operator :math:`(f \star g)(i) =
+    """Applies the spline-based convolution operator :math:`(f \star g)(i) =
     \frac{1}{|\mathcal{N}(i)|} \sum_{l=1}^{M_{in}} \sum_{j \in \mathcal{N}(i)}
     f_l(j) \cdot g_l(u(i, j))` over several node features of an input graph.
     Here, :math:`g_l` denotes the kernel function defined over the weighted