docs: Fix resource URI parameter names to match code

why: Docs used simplified placeholders ({name}, {index}, {id}) but the
actual MCP resource URIs use {session_name}, {window_index}, {pane_id}.
what:
- Update 5 resource URI patterns in docs/concepts.md and README.md
- Parameter names now match hierarchy.py exactly

Author: tony

README.md

@@ -187,11 +187,11 @@ args = ["--directory", "~/work/python/libtmux-mcp", "run", "libtmux-mcp"]
 Browse the tmux hierarchy via URI patterns:
 
 - `tmux://sessions` - All sessions
-- `tmux://sessions/{name}` - Session detail with windows
-- `tmux://sessions/{name}/windows` - Session's windows
-- `tmux://sessions/{name}/windows/{index}` - Window detail with panes
-- `tmux://panes/{id}` - Pane details
-- `tmux://panes/{id}/content` - Pane captured content
+- `tmux://sessions/{session_name}` - Session detail with windows
+- `tmux://sessions/{session_name}/windows` - Session's windows
+- `tmux://sessions/{session_name}/windows/{window_index}` - Window detail with panes
+- `tmux://panes/{pane_id}` - Pane details
+- `tmux://panes/{pane_id}/content` - Pane captured content
 
 ### Safety tiers
 

docs/concepts.md

@@ -80,8 +80,8 @@ Supported operators: `exact`, `contains`, `startswith`, `endswith`, `regex`, `ic
 In addition to tools, the MCP server exposes `tmux://` URI resources for browsing the hierarchy:
 
 - `tmux://sessions` — All sessions
-- `tmux://sessions/{name}` — Session detail with windows
-- `tmux://sessions/{name}/windows` — Session's windows
-- `tmux://sessions/{name}/windows/{index}` — Window detail with panes
-- `tmux://panes/{id}` — Pane details
-- `tmux://panes/{id}/content` — Pane captured content
+- `tmux://sessions/{session_name}` — Session detail with windows
+- `tmux://sessions/{session_name}/windows` — Session's windows
+- `tmux://sessions/{session_name}/windows/{window_index}` — Window detail with panes
+- `tmux://panes/{pane_id}` — Pane details
+- `tmux://panes/{pane_id}/content` — Pane captured content