Create README

This gives the brief Overview of Adding HTML Input field in GlideModal window

Author: Sriharsha19

Client-Side Components/UI Pages/Add HTML Input field in GlideModal window/README

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+ADD HTML Input Field in GlideModal Window:
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+It is possible to add a HTML input field in GlideModal window in servicenow.
+The most common approach involves including a WYSIWYG editor (such as TinyMCE) in the UI Page that you render inside a GlideModal. This enables full rich text functionality within the modal dialog.
+Steps :
+1) Create UI Page (eg: rich_text_modal) 
+2) Create UI Action (eg: Add Details. here I created the ui action on incident table)
+3) Open the incident record , click on the Add Details button , which opens the glide modal and includes fields like short description of type 'string' and description of type 'Rich Text/HTML'
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