Create readme.md

Author: spnegi

Client-Side Components/Client Scripts/Allow positive and decimal values/readme.md

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+Purpose of this script:
+
+It matches positive numbers (integers or decimals)
+It does not match 0 or 0.0 (i.e., it excludes non-positive numbers).
+
+So this regex is used when you want to allow only positive (> 0) integer or decimal values.
+It will give us the field message error if anyone tries to enter anything apart from the allowed values