docs: walkthrough of the client libraries

docs/pages/tutorials.mdx

@@ -17,7 +17,9 @@ This is an easy way to learn how to modify MUD functionality in various ways.
 [These tutorials](tutorials/walkthrough) are deep dives into various sections of code.
 
 - [The onchain components of the template](tutorials/walkthrough/onchain):
-  In this tutorial you learn how to understand the onchain components of the minimal template.
+  In this walkthrough you learn how to understand the onchain components of the minimal template.
+- [The MUD client libraries](walkthrough/client-lib):
+  In this walkthrough you'll learn about the client setup files that are included in all client templates.
 
 ## Emojimon
 

docs/pages/tutorials/walkthrough.mdx

@@ -3,3 +3,4 @@
 These tutorials are deep dives into various sections of code.
 
 1. [Onchain parts of the getting started](walkthrough/minimal-onchain)
+1. [The MUD client libraries](walkthrough/client-lib)

docs/pages/tutorials/walkthrough/_meta.js

@@ -1,3 +1,4 @@
 export default {
   "minimal-onchain": "The onchain components of the template",
+  "client-lib": "The MUD client libraries"
 };