spellcheck edits made by codespell

Author: cadenmyers13

.codespell/ignore_words.txt

@@ -9,3 +9,6 @@ socio-economic
 
 ;; Frobenius norm used in np.linalg.norm
 fro
+
+;; cutted used as attribute in unit_test.py and fourigui.py
+cutted

news/test.rst

@@ -16,7 +16,7 @@
 
 **Fixed:**
 
-* Surpress the `RuntimeWarning` in tests for the `applycutoff` function
+* Suppress the `RuntimeWarning` in tests for the `applycutoff` function
 
 **Security:**
 

src/diffpy/fourigui/fourigui.py

@@ -155,10 +155,10 @@ def initUI(self):
         anibutton.grid(row=8, column=4)
 
         # row 10-12 Fourier transformation
-        seperator = tk.Label(
+        separator = tk.Label(
             frame00, text=" "
         )  # __________________________________________________________________")
-        seperator.grid(row=9, column=0, columnspan=5)
+        separator.grid(row=9, column=0, columnspan=5)
         cutofflabel = tk.Label(frame00, text="cutoff frequency")
         cutofflabel.grid(row=10, column=2, columnspan=2)
         qminlabel = tk.Label(frame00, text="qmin [px]:")