Update SRC-7 links to point to new doc hub

standards/src_7/README.md

@@ -7,15 +7,15 @@
 
 # Abstract
 
-The following standard attempts to define the retrieval of on-chain arbitrary metadata for any [Native Asset](https://fuellabs.github.io/sway/v0.45.0/book/blockchain-development/native_assets.html). Any contract that implements the SRC-7 standard MUST implement the [SRC-20](https://github.com/FuelLabs/sway-standards/tree/master/standards/src_20) standard. 
+The following standard attempts to define the retrieval of on-chain arbitrary metadata for any [Native Asset](https://docs.fuel.network/docs/sway/blockchain-development/native_assets). Any contract that implements the SRC-7 standard MUST implement the [SRC-20](https://github.com/FuelLabs/sway-standards/tree/master/standards/src_20) standard. 
 
 # Motivation
 
 The SRC-7 standard seeks to enable data-rich assets on the Fuel Network while maintaining compatibility between multiple assets minted by the same contract. The standard ensures type safety with the use of an `enum` and an `Option`. All metadata queries are done through a single function to facilitate cross-contract calls.
 
 # Prior Art
 
-The use of generic metadata was originally found in the Sway-Lib's [NFT Library](https://github.com/FuelLabs/sway-libs/tree/v0.12.0/libs/nft) which did not use Fuel's [Native Assets](https://fuellabs.github.io/sway/v0.45.0/book/blockchain-development/native_assets.html). This library has since been deprecated. 
+The use of generic metadata was originally found in the Sway-Lib's [NFT Library](https://github.com/FuelLabs/sway-libs/tree/v0.12.0/libs/nft) which did not use Fuel's [Native Assets](https://docs.fuel.network/docs/sway/blockchain-development/native_assets). This library has since been deprecated. 
 
 A previous definition for a metadata standard was written in the original edit of the now defunct [SRC-721](https://github.com/FuelLabs/sway-standards/issues/2). This has since been replaced with the [SRC-20](https://github.com/FuelLabs/sway-standards/tree/master/standards/src_20) standard as `SubId` was introduced to enable multiple assets to be minted from a single contract. 
 
@@ -57,7 +57,7 @@ The SRC-7 standard should allow for data-rich assets to interact with one anothe
 
 # Backwards Compatibility
 
-This standard is compatible with Fuel's [Native Assets](https://fuellabs.github.io/sway/v0.45.0/book/blockchain-development/native_assets.html) and the [SRC-20](https://github.com/FuelLabs/sway-standards/tree/master/standards/src_20) standard. It also maintains compatibility with existing standards in other ecosystems.
+This standard is compatible with Fuel's [Native Assets](https://docs.fuel.network/docs/sway/blockchain-development/native_assets) and the [SRC-20](https://github.com/FuelLabs/sway-standards/tree/master/standards/src_20) standard. It also maintains compatibility with existing standards in other ecosystems.
 
 # Security Considerations