fix: links to other ERCs

ERCS/erc-7787.md

@@ -28,9 +28,9 @@ described in RFC 2119 and RFC 8174.
 
 This system MUST operate with two distinct tokens, one representing **political power** and another representing **economic power**:  
 
-1. The political power token is non-transferable, decays over time and MUST implement SDG. 
+1. The political power token SHOULD be non-transferable with over time decayment and MUST implement SDG. 
 
-2. The economic power token supports liquidity and trade, providing the financial utility needed for the DAO’s operations and is RECOMMENDED to be a standard ERC-20 token.
+2. The economic power token supports liquidity and trade, providing the financial utility needed for the DAO’s operations and is RECOMMENDED to be a standard [ERC-20](./erc-20.md) token.
 
 The implementer of this standard MUST:
 
@@ -105,7 +105,7 @@ abstract contract SDG {
 
 ## Rationale
 
-The SDG standard ensures flexibility by not being tied to any specific token type, allowing DAOs to implement it with **ERC-20**, **ERC-721**, **ERC-1155**, or other future token standards. This decision maximizes the compatibility and adaptability of the framework across different governance models.
+The SDG standard ensures flexibility by not being tied to any specific token type, allowing DAOs to implement it with **[ERC-20](./erc-20.md)**, **[ERC-721](./erc-721.md)**, **[ERC-1155](./erc-1155.md)**, or other future token standards. This decision maximizes the compatibility and adaptability of the framework across different governance models.
 
 The choice to **decouple governance power from economic power** aims to provide a practical governance model for young DAOs seeking to prevent early centralization while fostering active participation. Non-transferable governance tokens ensure that only engaged members retain influence, as political power decays over time if not renewed through contributions.