Update README.md

Author: martyall

Diff for: README.md

@@ -1,5 +1,5 @@
 # purescript-eth
-<img src=https://github.com/martyall/purescript-eth/blob/master/web3/purescript-web3-logo.png width="75">
+<img src=https://github.com/martyall/purescript-eth/blob/main/web3/purescript-web3-logo.png width="75">
 
 Core libraries for interacting with Ethereum data
 
@@ -12,4 +12,4 @@ Core libraries for interacting with Ethereum data
 
 ### Previous work
 All of these packages were previously listed in the [f-o-a-m](https://github.com/f-o-a-m) github org (no longer active). Since spago now allows for monorepo package management, I have greatly simplified the situation by consolidating everything here. All future work will be posted in this repository, the others are
-no archived.
+no archived.