Add VDB overview diagram to README

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Elizabeth Engelman 2019-05-08 11:44:04 -05:00
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## Background
The same data structures and encodings that make Ethereum an effective and trust-less distributed virtual machine
complicate data accessibility and usability for dApp developers. VulcanizeDB improves Ethereum data accessibility by
providing a suite of tools to ease the extraction and transformation of data into a more useful state.
providing a suite of tools to ease the extraction and transformation of data into a more useful state, including
allowing for exposing aggregate data from a suite of smart contracts.
VulanizeDB includes processes that sync, transform and expose data. Syncing involves
querying an Ethereum node and then persisting core data into a Postgres database. Transforming focuses on using previously synced data to
query for and transform log event and storage data for specifically configured smart contract addresses. Exposing data is a matter of getting
data from VulcanizeDB's underlying Postgres database and making it accessible.
![VulcanizeDB Overview Diagram](../documentation-updates/documentation/diagrams/vdb-overview.png)
## Dependencies
- Go 1.11+
- Postgres 10.6

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