chore(examples): include example descriptions

examples/custom.luau

@@ -1,3 +1,10 @@
+--[[
+    examples/custom.luau
+
+    Description: A slightly modified version of the simple example, including
+                 custom dictionaries.
+]]--
+
 local Codenamer = require("../dist/codenamer")
 local stdio = require("@lune/stdio")
 local process = require("@lune/process")

examples/simple.luau

@@ -1,3 +1,11 @@
+--[[
+    examples/simple.luau
+
+    Description: A basic codenamer example, which requests the user for a 
+                 number of codenames to generate, the way to format them, and 
+                 then generates and prints them.
+]]--
+
 local Codenamer = require("../dist/codenamer")
 local stdio = require("@lune/stdio")
 local process = require("@lune/process")

examples/tostring.luau

@@ -1,3 +1,10 @@
+--[[
+    examples/tostring.luau
+
+    Description: Codenamer implements a custom tostring metamethod, which returns a "generic type"
+                 based on the state of the codenamer instance.
+]]--
+
 local Codenamer = require("../dist/codenamer")
 
 local codenamer = Codenamer.new()