Azure cost estimation - Creation of costestimator.MD

docs/costestimator.md

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+# IA Accelerator, version 0.2 beta - Estimation
+
+The Azure pricing calculator helps estimate costs by considering the amount of data to be processed and stored, as well as the expected performance level. It allows users to customize and combine different Azure services for IA Accelerator, version 0.2 beta, and provides cost estimates based on the chosen configurations.
+
+
+| Solution            | Environment  |    Azure Pricing Calculator Link                                          |
+| :------------------:|:-----------------------------:|:------------------------------------------------:|
+| IA Accelerator, version 0.2 beta | Sandbox  |  [Sample Azure Estimation](https://azure.com/e/2a79f53411a740398783f0000865ea25) | 
+
+---
+### Azure Services
+
+The following list of Azure Services will be deployed for IA Accelerator, version 0.2 beta:
+
+- App Service
+- App Service plan
+- Application Insights
+- Azure Cosmos DB
+- Azure Form Recognizer
+- Azure OpenAI
+- Azure Cognitive services multi-service account
+- Cognitive Search
+- Azure AD Application Registration
+- Azure Active Directory
+- Log Analytics workspace
+- Storage account 
+
+---
+**NOTE:**
+
+- The proposed the cost estimation prepared based on Sandbox environment, estimation may vary customer to customer.
+- For detailed Azure OpenAI Service [pricing](https://azure.microsoft.com/en-us/pricing/details/cognitive-services/openai-service/#pricing)
+- To calculate total count of tokens [OpenAI Tokenizer](https://platform.openai.com/tokenizer)
+
+---
+
+At this point this step is complete, please return to the [Deployment](../#deployment) step and continue.