update doc

docs/_config.yml

@@ -1,5 +1,6 @@
 # Basic site settings
 title: Pocket Flow
+tagline: A 100-line LLM framework
 description: Minimalist LLM Framework in 100 Lines, Enabling LLMs to Program Themselves
 
 # Theme settings
@@ -16,12 +17,20 @@ aux_links:
 # Color scheme
 color_scheme: light
 
+# Author settings
+author:
+    name: Zachary Huang
+    url: https://www.columbia.edu/~zh2408/
+    twitter: ZacharyHuang12
+
+# Mermaid settings
 mermaid:
   version: "9.1.3"  # Pick the version you want
   # Default configuration
   config: |
     directionLR
 
+# Callouts settings
 callouts:
   warning:
     title: Warning