Feature/governance (#49)

* Add governance-token content

* add image

* add governance links

* add mission

* roadmap content

* Update vePuffer.png

* update route

docs/governance-token.md

@@ -30,7 +30,7 @@ The [PUFFER token](https://etherscan.io/address/0x4d1C297d39C5c1277964D0E3f8Aa90
 ### vePUFFER
 
 #### What is vePUFFER?
-![alt text](/img/vePUFFER.png)
+![alt text](../static/img/vePUFFER.png)
 
 vePUFFER is a novel ve (voting escrow) governance mechanism implemented as an ERC-721 token, developed in collaboration with [Aragon](https://aragon.org/). It's designed to align with Puffer's long-term goal of fostering value-aligned and committed participants in the ecosystem.