docs: readme fixes (#34)

* docs(readme): remapping path fix

* docs(readme): logo full url added

* docs(readme): beta version specified in install examples

* docs(readme): logo updated

README.md

@@ -1,6 +1,6 @@
 # ZKsync Contracts
 
-[![Logo](logo.svg)](https://zksync.io)
+[![Logo](https://raw.githubusercontent.com/matter-labs/v2-testnet-contracts/main/logo.svg)](https://zksync.io)
 
 This package contains ZKsync L1, L2 and System Contracts. For more details see the [source repository](https://github.com/matter-labs/era-contracts).
 
@@ -9,19 +9,19 @@ This package contains ZKsync L1, L2 and System Contracts. For more details see t
 ### Hardhat
 
 ```bash
-yarn add @matterlabs/zksync-contracts
+yarn add @matterlabs/zksync-contracts@1.0.0-beta.1
 ```
 
 ### Foundry
 
 ```bash
-forge install matter-labs/v2-testnet-contracts
+forge install matter-labs/v2-testnet-contracts@1.0.0-beta.1
 ```
 
 Add the following to the `remappings.txt` file of your project:
 
 ```txt
-@matterlabs/zksync-contracts/=/lib/v2-testnet-contracts/
+@matterlabs/zksync-contracts/=lib/v2-testnet-contracts/
 ```
 
 ## Usage