docs: update getting started

Signed-off-by: Gustavo Inacio <[email protected]>

Author: gusinacio

README.md

@@ -7,28 +7,94 @@ integrated with [TAP](https://github.com/semiotic-ai/timeline-aggregation-protoc
 which is a fast, efficient, and trustless unidirectional micro-payments system.
 
 --- 
-## Getting started
+## Getting Started
 
-### Docker images
-We build Docker images for commit, pull request and release.
+This section provides guidance for building, configuring, and running `indexer-service-rs` and `indexer-tap-agent`.
 
-You can use them by using xxxx:<tag>.
+### Docker Images
+
+Pre-built Docker images are available for both `indexer-service-rs` and `indexer-tap-agent`. You can pull these images using the following commands:
+
+- **Indexer Service:**
+```bash
+docker pull ghcr.io/graphprotocol/indexer-service-rs:<tag>
+```
+
+- **TAP Agent:**
+```bash
+docker pull ghcr.io/graphprotocol/indexer-tap-agent:<tag>
+```
+
+The `<tag>` corresponds to the current release version, which can be found in the [Releases Page](https://github.com/graphprotocol/indexer-rs/releases).
+
+#### Tag Examples for Version X.Y.Z
+For version `X.Y.Z`, the available tags include:
+- `latest`
+- `vX.Y.Z`
+- `X.Y.Z`
+- `vX.Y`
+- `X.Y`
+- `vX`
+
+Refer to the following badges for the latest release versions:
+| indexer-service-rs | [![GitHub Release](https://img.shields.io/github/v/release/graphprotocol/indexer-rs?filter=indexer-service-rs-*)](https://github.com/graphprotocol/indexer-rs/releases?q=indexer-service-rs) |
+|---------------------|---------------------------------------------------------------------------------------------------------------------------|
+| indexer-tap-agent   | [![GitHub Release](https://img.shields.io/github/v/release/graphprotocol/indexer-rs?filter=indexer-tap-agent-*)](https://github.com/graphprotocol/indexer-rs/releases?q=indexer-tap-agent) |
+
+---
 
 ### Building Locally
 
-To build and run the project locally, use the following command:
+To build the services locally, ensure you have the latest version of Rust installed. No additional plugins are required.
 
+#### Steps:
+1. Clone the repository:
 ```bash
-$ cargo run -p indexer-service-rs -- --help
+git clone https://github.com/graphprotocol/indexer-rs.git && cd indexer-rs
+```
+
+2. Build the binaries:
+- **Indexer Service:**
+  ```
+  cargo build --release -p indexer-service-rs
+  ```
+- **TAP Agent:**
+  ```
+  cargo build --release -p indexer-tap-agent
+  ```
+
+3. The compiled binaries can be found in the `target/release/` directory:
+- `target/release/indexer-service-rs`
+- `target/release/indexer-tap-agent`
+
+---
 
-Usage: indexer-service-rs --config <FILE>
+### Configuration
 
-Options:
-      --config <FILE>  Path to the configuration file.
-                       See https://github.com/graphprotocol/indexer-rs/tree/main/config for examples.
-  -h, --help           Print help
+The services require a configuration file provided through the `--config` flag during startup. A minimal example configuration is available at:
+- [Minimal Configuration Template](config/minimal-config-example.toml)
+
+#### Steps:
+1. **Edit the Configuration:**
+Open the `minimal-config-example.toml` file and populate the required fields. Some fields must be configured with values from [this table](https://thegraph.com/docs/en/tap/#blockchain-addresses).
+
+2. **Override with Environment Variables (Optional):**
+You can override configuration fields using environment variables. Use the prefix `INDEXER_`, and for nested fields, use double underscores `__`. For example:
+
+```bash
+export INDEXER_SERVICE_SUBGRAPHS__NETWORK__QUERY_URL=<value>
 ```
 
+3. **Start the Service:**
+- **Indexer Service:**
+  ```bash
+  target/release/indexer-service-rs --config config/minimal-config-example.toml
+  ```
+- **TAP Agent:**
+  ```bash
+  target/release/indexer-tap-agent --config config/minimal-config-example.toml
+  ```
+
 ## Configuration
 
 All configuration is managed through a TOML file. Below are examples of configuration templates to help you get started: