Update src/content/docs/apm/agents/ruby-agent/api-guides/ruby-ai-moni…

…toring-apis.mdx

Co-authored-by: Hannah Ramadan <76922290+hannahramadan@users.noreply.github.com>

src/content/docs/apm/agents/ruby-agent/api-guides/ruby-ai-monitoring-apis.mdx

@@ -31,14 +31,13 @@ The following example code demonstrates setting a callback that calculates token
     require 'tiktoken_ruby' # Example library for counting GPT model tokens used
 
     token_count_callback = proc do |hash|
-    return unless hash[:model].includes?('gpt')
-
-    enc = Tiktoken.encoding_for_model(hash[:model])
-    enc.encode(hash[:content]).length
+      return unless hash[:model].includes?('gpt')
+  
+      enc = Tiktoken.encoding_for_model(hash[:model])
+      enc.encode(hash[:content]).length
     end
 
     NewRelic::Agent.set_llm_token_count_callback(token_count_callback)
-```
 
 ## User feedback [#user-feedback]