docs: add gas estimation to FAQ

doc/FAQ.md

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+
+# Livepeer FAQ
+
+## General Questions
+
+### What is Livepeer?
+Livepeer is a decentralized video infrastructure network that enables developers to build scalable video applications on Ethereum and other EVM-compatible chains.
+
+### How does Livepeer work?
+Livepeer combines decentralized storage and computing to provide a scalable video infrastructure. It uses a network of independent nodes that process and deliver video streams.
+
+## Technical Questions
+
+### How do I estimate transaction costs in the CLI?
+When working with Livepeer transactions, it's important to be aware of gas costs to avoid high-fee accidents. While the Livepeer CLI doesn't currently provide built-in cost estimation, you can use these strategies:
+
+1. **Use Ethereum Gas Trackers**: Before broadcasting transactions, check current gas prices using tools like:
+   - [Etherscan Gas Tracker](https://etherscan.io/gastracker)
+   - [GasNow](https://www.gasnow.org/)
+   - [EtherGasStation](https://etherscan.io/gasstation)
+
+2. **Estimate Gas Manually**: For common transactions, you can estimate gas costs:
+   - Standard transactions typically require 21,000 gas
+   - Complex transactions may require 50,000-100,000 gas or more
+   - Multiply gas units by current gas price to estimate fees
+
+3. **Monitor Network Conditions**: During periods of high network activity, gas prices can increase significantly. Check gas prices before submitting transactions.
+
+4. **Use Transaction Builders**: Tools like MetaMask or MyEtherWallet can help estimate transaction costs before submission.
+
+### How can I check my node's status?
+You can check your node's status using the CLI command:
+```
+livepeer status
+```
+
+This will provide information about your node's health, current tasks, and connection status.
+
+## Troubleshooting
+
+### My node is not connecting to the network
+Please check your network configuration and ensure your node is properly configured in the Livepeer network. You can use:
+```
+livepeer config show
+```
+to verify your settings.
+
+### How do I update my node?
+To update your node, simply run:
+```
+livepeer update
+```
+This will check for updates and install them if available.

doc/faq/gas-estimation.md

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+
+
+# Transaction Cost Estimation Guide
+
+## Introduction
+
+When working with Livepeer transactions, it's important to be aware of gas costs to avoid high-fee accidents. While the Livepeer CLI doesn't currently provide built-in cost estimation, you can use these strategies to estimate and manage transaction costs effectively.
+
+## Estimating Transaction Costs
+
+### Using Ethereum Gas Trackers
+
+Before broadcasting transactions, check current gas prices using these tools:
+
+- [Etherscan Gas Tracker](https://etherscan.io/gastracker)
+- [GasNow](https://www.gasnow.org/)
+- [EtherGasStation](https://etherscan.io/gasstation)
+
+These tools provide real-time information about gas prices and network congestion.
+
+### Manual Gas Estimation
+
+For common transactions, you can estimate gas costs:
+
+- **Standard transactions**: Typically require 21,000 gas
+- **Complex transactions**: May require 50,000-100,000 gas or more
+- **Transaction fee calculation**: Multiply gas units by current gas price to estimate fees
+
+### Monitoring Network Conditions
+
+During periods of high network activity, gas prices can increase significantly. Always check gas prices before submitting transactions to avoid unexpected fees.
+
+### Using Transaction Builders
+
+Tools like MetaMask or MyEtherWallet can help estimate transaction costs before submission. These tools often provide:
+- Gas limit suggestions
+- Fee estimates
+- Transaction preview
+
+## Best Practices
+
+1. **Check gas prices** before submitting transactions
+2. **Set appropriate gas limits** based on transaction complexity
+3. **Monitor network conditions** to avoid high fees
+4. **Use transaction builders** for better fee estimation
+5. **Consider transaction urgency** - non-urgent transactions can wait for lower gas prices
+
+## Troubleshooting High Fees
+
+If you encounter unexpectedly high fees:
+
+1. **Check network congestion** using gas tracker tools
+2. **Adjust gas prices** to match current network conditions
+3. **Consider transaction prioritization** - urgent transactions may require higher fees
+4. **Review transaction complexity** - complex transactions may require more gas
+
+## Additional Resources
+
+- [Ethereum Gas FAQ](https://ethereum.org/en/developers/docs/gas/)
+- [Ethereum Gas Calculator](https://ethgasstation.info/)
+- [Livepeer Documentation](https://docs.livepeer.org/)
+