doc: readme changes

plerkle_snapshot/README.md

@@ -1,7 +1,5 @@
 # Solana Snapshot ETL 📸
 
-[![crates.io](https://img.shields.io/crates/v/solana-snapshot-etl?style=flat-square&logo=rust&color=blue)](https://crates.io/crates/solana-snapshot-etl)
-[![docs.rs](https://img.shields.io/badge/docs.rs-solana--snapshot--etl-blue?style=flat-square&logo=docs.rs)](https://docs.rs/solana-snapshot-etl)
 [![license](https://img.shields.io/badge/license-Apache--2.0-blue?style=flat-square)](#license)
 
 **`solana-snapshot-etl` efficiently extracts all accounts in a snapshot** to load them into an external system.
@@ -23,69 +21,14 @@ A full snapshot file contains a copy of all accounts at a specific slot state (i
 Historical accounts data is relevant to blockchain analytics use-cases and event tracing.
 Despite archives being readily available, the ecosystem was missing an easy-to-use tool to access snapshot data.
 
-## Building
-
-```shell
-cargo install --git https://github.com/terorie/solana-snapshot-etl --features=standalone --bins
-```
-
 ## Usage
 
-The ETL tool can extract snapshots from a variety of streaming sources
-and load them into one of the supported storage backends.
-
-The basic command-line usage is as follows:
-
-```
-USAGE:
-    solana-snapshot-etl [OPTIONS] <LOAD_FLAGS> <SOURCE>
-```
-
-### Sources
-
-Extract from a local snapshot file:
-
-```shell
-solana-snapshot-etl /path/to/snapshot-*.tar.zst ...
-```
-
-Extract from an unpacked snapshot:
-
-```shell
-# Example unarchive command
-tar -I zstd -xvf snapshot-*.tar.zst ./unpacked_snapshot/
-
-solana-snapshot-etl ./unpacked_snapshot/
-```
-
-Stream snapshot from HTTP source or S3 bucket:
-
-```shell
-solana-snapshot-etl 'https://my-solana-node.bdnodes.net/snapshot.tar.zst?auth=xxx' ...
-```
-
-### Targets
-
-#### Geyser plugin
-
-Much like `solana-validator`, this tool can write account updates to Geyser plugins.
+Instruction of usage we can find in [this section](../README.md#snapshot-etl).
 
-```shell
-solana-snapshot-etl snapshot-139240745-*.tar.zst --geyser plugin-config.json
-```
-
-For more info, consult Solana's docs: https://docs.solana.com/developing/plugins/geyser-plugins
+## Changes
 
-#### Dump programs
+The following changes were made to the original Solana Snapshot ETL tool:
 
-The `--programs-out` flag exports all Solana programs (in ELF format).
-
-```shell
-solana-snapshot-etl snapshot-139240745-*.tar.zst --programs-out programs.tar
-```
-
-or to extract in place
-
-```shell
-solana-snapshot-etl snapshot-139240745-*.tar.zst --programs-out - | tar -xv
-```
+- The solana-opcode-stats binary has been removed.
+- The current version of the ETL only streams data to the Geyser plugin. CSV and SQLite support have been removed.
+- The ETL now assigns a slot number to the account data, extracting the slot number from the snapshot file name.