#3 added edgemap

Test.m

+%% Example Title
+% Let's use Edvard Munch's - skrik picture
+image = imread("colorHistogram/Edvard_Munch_-_Despair_(1894).jpg");
+
+% Let's also display the picture to see how it originally looks
+%imshow(image);
+%% edgeMap - Test of implementation
+edgeImage = edgeMap(image);
+
+imshow(edgeImage);
+
+
+%% Section 2 Title
+% Description of second code block
+b = 2;

edgeMap.m

+%Returns an edge map for RGB images
+function edgeMap = edgeMap(image)
+    %Convert image to greyscale
+    greyImage = rgb2gray(image);
+    %Use inbuilt edge function
+    edgeMap = edge(greyImage);
+end
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