diff --git a/news/doc.rst b/news/doc.rst
new file mode 100644
index 0000000..476b2bd
--- /dev/null
+++ b/news/doc.rst
@@ -0,0 +1,23 @@
+**Added:**
+
+* <news item>
+
+**Changed:**
+
+* <news item>
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+Fixed 3 typos in docstring of subroutines.py
+
+**Security:**
+
+* <news item>
diff --git a/src/diffpy/snmf/subroutines.py b/src/diffpy/snmf/subroutines.py
index ae7f7ef..bee3475 100644
--- a/src/diffpy/snmf/subroutines.py
+++ b/src/diffpy/snmf/subroutines.py
@@ -112,9 +112,9 @@ def construct_component_matrix(components):
 def construct_weight_matrix(components):
     """Constructs the weights matrix.
 
-    Constructs a Ķ x M matrix where K is the number of components and M is the
+    Constructs a K x M matrix where K is the number of components and M is the
     number of signals. Each element is the stretching factor for a specific
-    weights for a specific signal from the data input.
+    weight factor for a specific signal from the data input.
 
     Parameters
     ----------
@@ -359,7 +359,7 @@ def update_weights_matrix(
       The length of the experimental signal patterns
 
     stretching_factor_matrix: 2d array like
-      The matrx containing the stretching factors of the calculated component signals. Has dimensions K x M
+      The matrix containing the stretching factors of the calculated component signals. Has dimensions K x M
       where K is the number of component signals and M is the number of XRD/PDF patterns.
 
     component_matrix: 2d array like