Update trust.mdx with working link from Vitalik's blog

The original link is broken along with all the links on Vitalik's original website (vitalik.ca)

content/en/learn/module-0/trust.mdx

@@ -64,7 +64,7 @@ it becomes to verify (and therefore trust) the systems we use. This implies that
 > 💡 Trust has something to do with truth. 
 
 Publicly verifiable truth means more humans can reach consensus on the basic state of their 
-shared realities and get on transacting in increasingly valuable ways based on [new kinds and degrees of trust](https://vitalik.ca/general/2020/08/20/trust.html). 
+shared realities and get on transacting in increasingly valuable ways based on [new kinds and degrees of trust](https://vitalik.eth.limo/general/2020/08/20/trust.html). 
 
 It's a **profound feedback loop**: use a universal language (math) to define succinctly what it 
 means to cheat, enforce penalties in a deterministic and executable way based on your definitions