docs: fix html logos in readme

Author: achingbrain

README.md

@@ -222,8 +222,8 @@ List of packages currently in existence for libp2p
 
 <div style="padding: 20px">
   <p align="middle">
-    <a href="https://lodestar.chainsafe.io/"><img width="300" src="https://github.com/ChainSafe/lodestar/blob/unstable/assets/lodestar_icon_text_black_stroke.png?raw=true"></a>
-    <a href="https://hoprnet.org/"><img width="150" src="https://github.com/hoprnet/hopr-assets/blob/master/v1/logo/hopr_logo_padded.png?raw=true" alt="HOPR Logo">
+    <a href="https://lodestar.chainsafe.io/"><img width="300" src="https://github.com/ChainSafe/lodestar/blob/unstable/assets/lodestar_icon_text_black_stroke.png?raw=true" /></a>
+    <a href="https://hoprnet.org/"><img width="150" src="https://github.com/hoprnet/hopr-assets/blob/master/v1/logo/hopr_logo_padded.png?raw=true" alt="HOPR Logo" /></a>
     <a href="https://helia.io/"><img src="https://raw.githubusercontent.com/ipfs/helia/main/assets/helia.png" alt="Helia (IPFS in JavaScript) logo" width="150" /></a>
     <a href="https://peerbit.org/"><img src="https://github.com/dao-xyz/peerbit/blob/master/docs/peerbit-logo.png" alt="Peerbit logo" width="150" /></a>
     <a href="https://topology.gg/"><img src="https://avatars.githubusercontent.com/u/157637200" alt="Topology logo" width="150" /></a>