fix: update docs, no more vim.g

.gitignore

@@ -1,3 +1,4 @@
 .venv/
+doc/tags
 venv/
 CLAUDE.md

doc/cp.txt

@@ -66,30 +66,27 @@ CONFIGURATION						*cp-config*
 
 cp.nvim works out of the box. No setup required.
 
-Optional: >
-    vim.g.cp = {
-      config = {
-        debug = false,
-        contests = {
-          default = {
-            cpp_version = 20,
-            compile_flags = { "-O2", "-DLOCAL", "-Wall", "-Wextra" },
-            debug_flags = { "-g3", "-fsanitize=address,undefined", "-DLOCAL" },
-            timeout_ms = 2000,
-          },
-          atcoder = { cpp_version = 23 },
+Optional configuration: >
+    require('cp').setup({
+      debug = false,
+      contests = {
+        default = {
+          cpp_version = 20,
+          compile_flags = { "-O2", "-DLOCAL", "-Wall", "-Wextra" },
+          debug_flags = { "-g3", "-fsanitize=address,undefined", "-DLOCAL" },
+          timeout_ms = 2000,
         },
-        hooks = {
-          before_run = function(problem_id) vim.cmd.w() end,
-        },
-        tile = function(source_buf, input_buf, output_buf)
-          -- custom window layout
-        end,
-        filename = function(contest, problem_id, problem_letter)
-          -- custom filename generation
-        end,
-      }
-    }
+        atcoder = { cpp_version = 23 },
+      },
+      hooks = {
+        before_run = function(problem_id) vim.cmd.w() end,
+        before_debug = function(problem_id) ... end,
+      },
+      tile = function(source_buf, input_buf, output_buf)
+      end,
+      filename = function(contest, problem_id, problem_letter)
+      end,
+    })
 <
 
 Configuration options:

doc/tags

@@ -1,16 +0,0 @@
-:CP	cp.txt	/*:CP*
-cp	cp.txt	/*cp*
-cp-atcoder	cp.txt	/*cp-atcoder*
-cp-codeforces	cp.txt	/*cp-codeforces*
-cp-commands	cp.txt	/*cp-commands*
-cp-config	cp.txt	/*cp-config*
-cp-cses	cp.txt	/*cp-cses*
-cp-example	cp.txt	/*cp-example*
-cp-files	cp.txt	/*cp-files*
-cp-health	cp.txt	/*cp-health*
-cp-platforms	cp.txt	/*cp-platforms*
-cp-requirements	cp.txt	/*cp-requirements*
-cp-snippets	cp.txt	/*cp-snippets*
-cp-workflow	cp.txt	/*cp-workflow*
-cp.nvim	cp.txt	/*cp.nvim*
-cp.txt	cp.txt	/*cp.txt*