diff --git a/openid-federation-wallet-1_0.md b/openid-federation-wallet-1_0.md
index 1875152..12d77d4 100644
--- a/openid-federation-wallet-1_0.md
+++ b/openid-federation-wallet-1_0.md
@@ -502,7 +502,7 @@ In the example represented in the sequence diagram below, the Wallet Instance us
         +---┴--+                                           +------┴-----+ +------┴-----+ +--------┴--------+          
         |Wallet|                                           |Trust Anchor| |Intermediate| |Credential Issuer|          
         +------+                                           +------------+ +------------+ +-----------------+    
-~~~~
+~~~
 **Figure 4**: Federation Credential Issuer listing, the Wallet Instance browse the entire federation collecting all the Credential Issuers.  
 
 
@@ -510,7 +510,7 @@ The diagram above shows how a Wallet navigates the federation, collecting and va
 
 The diagram below illustrates how a Wallet establishes trust with a Credential Issuer by verifying its link (even if indirect) to a Trust Anchor and validating which Credentials it is authorized to issue. This may happen in a credential offer flow, for instance, where the Wallet is used by an End-User starting from the Credential Issuer website and without any discovery phases started before within the Wallet.
 
-~~~~ ascii-art
+~~~ ascii-art
         +------+                                   +-----------------+ +-------------------------+          
         |Wallet|                                   |Credential Issuer| |Intermediate/Trust Anchor|          
         +---+--+                                   +--------+--------+ +------------+------------+          
@@ -572,7 +572,7 @@ The diagram below illustrates how a Wallet establishes trust with a Credential I
         +---+--+                                   +--------+--------+ +------------+------------+          
         |Wallet|                                   |Credential Issuer| |Intermediate/Trust Anchor|          
         +------+                                   +-----------------+ +-------------------------+     
-~~~~
+~~~
 **Figure 5**: Federation Entity Discovery, the Wallet Instance evaluates the trust with a Credential Issuer.