Enhance form field count readme

Server-Side Components/Background Scripts/Form Field Count/README.md

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-This background or fix script will list forms that have more than a certain number of fields (starting threshold is 30, but can be changed on line 2).  It looks through all form sections, and excludes container starts and splits.  Forms / sections with more than 30(?) fields will appear on the Health Scan / Impact report as a possible performance impact, causing the form to take a noticeable amount of time to load.
+# Form Field Count
+
+A background script that identifies forms with excessive field counts that may impact performance or trigger Health Scan warnings.
+
+## Usage
+
+1. Navigate to **System Definition → Scripts - Background**
+2. Copy and paste the script content
+3. (Optional) Modify `maxFields` variable to set your threshold (default: 30)
+4. Click "Run script"
+
+## What It Does
+
+The script:
+1. Queries all forms in the instance (`sys_ui_form`)
+2. Iterates through each form's sections (`sys_ui_form_section`)
+3. Counts fields in each section, excluding container elements (splits, section starts)
+4. Reports only forms exceeding the configured threshold
+5. Outputs form name and total field count to system logs
+