README: add Grafana dashboard screenshots

README.md

@@ -5,6 +5,8 @@ Codex, Gemini, aider, omp, pi, grok, opencode, or any set you configure —
 captured in-kernel with eBPF and served by a [yeet](https://yeet.cx)
 service. A provisioned Grafana dashboard rides along.
 
+![Agent Activity dashboard — overview: hero stats, tracked tasks, tool execs/s, which agent ran what, top tools, CPU by agent](docs/dashboard-overview.png)
+
 ```
  kernel (eBPF)                yeet service "agentcap"              observability
 ┌────────────────────┐   ┌──────────────────────────────────┐   ┌──────────────┐
@@ -218,6 +220,8 @@ per agent across every panel. It has four sections:
 - **Agent detail — $agent** — a repeated, collapsed row per selected agent
   with its own tools, lifecycle, CPU/tasks, network, domains and ports.
 
+![Agent Activity dashboard — activity over time: fleet activity clock heatmap, per-agent load band, and the agent detail row](docs/dashboard-activity.png)
+
 The dashboard is generated by `deploy/grafana/gen-dashboard.py` (edit the
 Python, rerun it, Grafana's file provider reloads within 30s) so the panel
 boilerplate and the per-agent color mapping stay consistent.