Minor typo (literally)

Author: ccaprani

docs/source/rst/post.rst

@@ -338,9 +338,9 @@ Major Principal Stress (:math:`\sigma_{1}`)
 ..  automethod:: sectionproperties.analysis.cross_section.StressPost.plot_stress_1
     :noindex:
 
-Major Principal Stress (:math:`\sigma_{2}`)
+Minor Principal Stress (:math:`\sigma_{2}`)
 """"""""""""""""""""""""""""""""""""
-..  automethod:: sectionproperties.analysis.cross_section.StressPost.plot_stress_1
+..  automethod:: sectionproperties.analysis.cross_section.StressPost.plot_stress_2
     :noindex:
 
 von Mises Stress (:math:`\sigma_{vM}`)

sectionproperties/analysis/cross_section.py

@@ -3861,7 +3861,7 @@ def plot_stress_1(self, pause=True):
         return self.plot_stress_contour(sigs, title, pause)
 
     def plot_stress_2(self, pause=True):
-        """Produces a contour plot of the Minor principal stress :math:`\sigma_{1}` resulting from all
+        """Produces a contour plot of the Minor principal stress :math:`\sigma_{2}` resulting from all
         actions.
 
         :param bool pause: If set to true, the figure pauses the script until the window is closed.