update docs and ascii banner

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diff --git a/README.md b/README.md
index f47f405..532d581 100644
--- a/README.md
+++ b/README.md
@@ -2,23 +2,23 @@
 
 <img src=assets/ior-small.png />
 
-I/O Riot NG is an experiments with BPF. This program traces for synchronous I/O syscalls and then analyses the time taken for each of those syscalls. This is especially useful for drawing FlameGraphs like these:
+I/O Riot NG is an experiment with BPF. It traces synchronous I/O syscalls and analyses how long each one took. Useful for drawing FlameGraphs like these:
 
 <img src=assets/screenshot-flames.png />
 
-Maybe this is a spiritual successor of one of my previous projects, I/O Riot https://codeberg.org/snonux/ioriot, the latter was based on SystemTap and C. The NG is based on Go, C and BPF (via libbpfgo).
+A spiritual successor to one of my previous projects, I/O Riot (https://codeberg.org/snonux/ioriot), which was based on SystemTap and C. The NG is based on Go, C, and BPF (via libbpfgo).
 
-This works only on Linux!
+Linux only.
 
 ## Demo
 
 A short guided tour with animated GIFs of every major surface lives in [`docs/tutorial/tutorial.md`](./docs/tutorial/tutorial.md). Two teasers:
 
-**Startup — the PID picker:** `sudo ./ior` opens a searchable process list. Navigate with arrow keys, filter by typing, and press `Enter` to start tracing. The dashboard appears immediately after.
+**Startup, the PID picker:** `sudo ./ior` opens a searchable process list. Navigate with arrow keys, filter by typing, press `Enter` to start tracing. The dashboard appears right after.
 
 <img src=docs/tutorial/assets/01-launch.gif width=720 alt="Cold start: PID picker, then the dashboard appears" />
 
-**Live flamegraph tab:** Once tracing, tab `1` shows a live flamegraph that rebuilds in real time as I/O events arrive. Bars grow and shift with the workload — this is the default landing tab.
+**Live flamegraph tab:** Once tracing, tab `1` shows a live flamegraph that rebuilds in real time as I/O events arrive. Bars grow and shift with the workload. This is the default landing tab.
 
 <img src=docs/tutorial/assets/13-tui-flamegraph.gif width=720 alt="Live in-TUI flamegraph rebuilding from real workload" />
 
@@ -33,7 +33,7 @@ The demo is fully reproducible: `mage installDemoTools` once, then `sudo -v && m
 ## Build
 
 Builds a fully static `ior` binary inside a Rocky Linux 9 container and writes
-it to the repo root — no local Go, clang, or libbpfgo setup required:
+it to the repo root. No local Go, clang, or libbpfgo setup required:
 
 ```shell
 mage buildDocker
@@ -55,7 +55,7 @@ For contributors who need a native build (Fedora / Rocky Linux 9), see
 Build on one machine, then `scp ior other-host:/usr/local/bin/` and run it
 anywhere. The binary is fully statically linked and uses libbpf CO-RE
 (Compile-Once, Run-Everywhere) to adapt field offsets to the target kernel's
-BTF at load time — no recompile per host or kernel version needed.
+BTF at load time. No recompile per host or kernel version needed.
 
 See [docs/build-rocky-linux-9.md](./docs/build-rocky-linux-9.md) for the full
 explanation.