Add link to CyberChef parser until we add info endpoint to api

docs/src/faq.md

@@ -50,3 +50,10 @@ We don't save it, or broadcast it, or use it for any other purpose.
 
 </details>
 
+<details>
+  <summary>How can I check when my credential expires?</summary>
+
+Rocket Pool users who connected with the Smartnode Addon can run `rocketpool node status` to see when their current username/password will expire.  
+All other users can go to this [CyberChef](https://gchq.github.io/CyberChef/#recipe=Comment\('INSTRUCTIONS:%5Cn%5CnPaste%20your%20username/password%20separated%20by%20a%20single%20%60:%60%20in%20the%20input%20box.'\)Split\(':','%5C%5Cn'\)Fork\('%5C%5Cn','%5C%5Cn',false\)From_Base64\('A-Za-z0-9-_',true,false\)To_Hex\('None',0\)Merge\(true\)Comment\('Store%20hex%20node%20id%20in%20R0'\)Register\('\(%5B%5C%5Cs%5C%5CS%5D*\)%5C%5Cn',true,false,false\)Find_/_Replace\(%7B'option':'Regex','string':'.*%5C%5Cn'%7D,'',true,false,true,false\)From_Hex\('Auto'\)Comment\('Store%20Password%20binary%20in%20R1'\)Register\('\(.*\)',true,false,true\)Comment\('Parse%20Issued%20Date%20into%20R2'\)Protobuf_Decode\('',false,false\)JPath_expression\('$.1.2','%5C%5Cn',true\)Register\('\(%5B%5C%5Cs%5C%5CS%5D*\)',true,false,false\)Comment\('Humanize%20Issued%20Date%20into%20R3'\)From_UNIX_Timestamp\('Seconds%20\(s\)'\)Register\('\(%5B%5C%5Cs%5C%5CS%5D*\)',true,false,false\)Comment\('Store%20Operator%20Type%20in%20R4'\)Find_/_Replace\(%7B'option':'Regex','string':'.*'%7D,'$R1',false,true,true,true\)Protobuf_Decode\('',false,false\)JPath_expression\('$.1.3','%5C%5Cn',true\)Register\('\(%5B%5C%5Cs%5C%5CS%5D*\)',true,false,false\)Find_/_Replace\(%7B'option':'Simple%20string','string':'0'%7D,'Rocket%20Pool',true,false,true,false\)Find_/_Replace\(%7B'option':'Regex','string':'1'%7D,'Solo',true,false,true,false\)Register\('\(%5B%5C%5Cs%5C%5CS%5D*\)',true,false,false\)Comment\('Calculate%20Expiry%20Timestamp,%20store%20in%20R5'\)Find_/_Replace\(%7B'option':'Regex','string':'.*'%7D,'$R4%20-5',false,true,true,true\)Multiply\('Space'\)Find_/_Replace\(%7B'option':'Regex','string':'$'%7D,'%2015',true,true,true,true\)Sum\('Space'\)Find_/_Replace\(%7B'option':'Regex','string':'$'%7D,'%2024%2060%2060',true,true,true,true\)Multiply\('Space'\)Find_/_Replace\(%7B'option':'Regex','string':'$'%7D,'%20$R2',true,true,true,true\)Sum\('Space'\)Register\('\(%5B%5C%5Cs%5C%5CS%5D*\)',true,false,false\)From_UNIX_Timestamp\('Seconds%20\(s\)'\)Register\('\(%5B%5C%5Cs%5C%5CS%5D*\)',true,false,false\)Find_/_Replace\(%7B'option':'Regex','string':'.*'%7D,'Credential:%5C%5Cn%5C%5CtIssued%20to%200x$R0%5C%5Cn%5C%5CtIssued%20on%20$R3%5C%5Cn%5C%5CtExpires%20on%20$R7%5C%5Cn%5C%5Ct$R5%20Node%20Operator',false,true,true,true\)&input=OVVrYUxjS19BUVVWem5vUU1jb2ZYQ0hRa1pVPTpDZ2dReG96T3F3WVlBUklnR21GX2lBUThfaXg4Z1VnZmpDNjVwSG5acFN2XzJWLVd0cFhzSDFna2hDST0\)) page and follow the instructions at the top of the recipe to check their username:password.
+
+</details>