Fix Oregonator problem typos

Author: Steven-Roberts

toolbox/+otp/+oregonator/+presets/Canonical.m

@@ -11,7 +11,7 @@
 
     methods
         function obj = Canonical(varargin)
-            % Create the Canonical Oregonator problem object.
+            % Create the canonical Oregonator problem object.
             %
             % Parameters
             % ----------

toolbox/+otp/+oregonator/+presets/EnrightHull.m

@@ -11,7 +11,7 @@
 
     methods
         function obj = EnrightHull
-            % Create the EnrightHull Oregonator problem object.
+            % Create the Enright–Hull Oregonator problem object.
 
             tspan = [0, 300];
             y0 = [4; 1.1; 4];

toolbox/+otp/+oregonator/+presets/GottwaldWanner.m

@@ -13,7 +13,7 @@
 
     methods
         function obj = GottwaldWanner
-            % Create the GottwaldWanner Oregonator problem object.
+            % Create the Gottwald–Wanner Oregonator problem object.
 
             tspan = [0, 302.85805];
             y0 = [4; 1.331391; 2.852348];