Create README.md

Author: raghavs046

Specialized Areas/Styles/Zoom Catalog Image on Hover/README.md

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+**How to use**
+1. Add this css code to "Page specific css" on "sc_cat_item" page for Service Portal.
+2.  Add this css code to "Page specific css" on "esc_sc_cat_item" page for Employee centre portal
+3.  This can also be used in css includes at theme level.
+4. If your portal is customised and different pages are used for catalog items through Page Route Maps, use this in your pages.
+
+**Use Case**
+1. Many product catalogs have small images, organisations don't want to change that at backend but want to give the user the ability to see a zoomed-in image.