docs: add typescript version requirements to development section

Co-Authored-By: Jayant Krishnamurthy <jayant@dourolabs.xyz>

README.md

@@ -37,6 +37,9 @@ Fortuna is an off-chain service which can be used by [Entropy](https://pyth.netw
 
 ## Development
 
+### TypeScript Version Requirements
+The project requires TypeScript version >=4.7.4 <5.5.0. Using versions outside this range may result in linting warnings.
+
 ### Pull requests
 
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