Update CHANGELOG.md

CHANGELOG.md

@@ -444,4 +444,6 @@ Instalation of the existing project with Django
 ## 2020-08-20
 
 * Create an redirect 404 page (fore operation) when the user try to access to an operation that doesn't exist
-* Save (with real-time) upates of geom position (operation screen) => issue [#67](#67)
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+* Save (with real-time) upates of geom position (operation screen) => issue [#67](#67)
+* Search issues:
+    * [#72](#72) Search zoom => map scale = 1:25000 
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