(remove): makefile, not needed & update README

Makefile

@@ -1,19 +0,0 @@
-PREFIX  ?= /usr/local
-BINDIR  := $(PREFIX)/bin
-BINARY  := drift
-
-.PHONY: all build install uninstall clean
-
-all: build
-
-build:
-	cargo build --release
-
-install: build
-	install -Dm755 target/release/$(BINARY) $(DESTDIR)$(BINDIR)/$(BINARY)
-
-uninstall:
-	rm -f $(DESTDIR)$(BINDIR)/$(BINARY)
-
-clean:
-	cargo clean

README.md

@@ -50,23 +50,20 @@ sudo pacman -S mpv yt-dlp
 ```bash
 git clone https://github.com/socatlolmeow/drift.git
 cd drift
-sudo make install
+cargo build --release
 ```
 
-This installs `drift` to `/usr/local/bin`. To install to `/usr/bin` instead:
+Then copy the binary to somewhere on your `$PATH`:
 ```bash
-sudo make install PREFIX=/usr
+sudo cp target/release/drift /usr/local/bin/
 ```
 
-### Other make targets
+Or install directly with cargo:
+```bash
+cargo install --path .
+```
 
-| Command | Description |
-|---|---|
-| `make` | Build (debug skipped, release only) |
-| `make build` | Same as above |
-| `sudo make install` | Build and install to `$PREFIX/bin` |
-| `sudo make uninstall` | Remove the installed binary |
-| `make clean` | Remove build artifacts |
+This installs `drift` to `~/.cargo/bin/`, which is on your `$PATH` if you installed Rust via [rustup](https://rustup.rs/).
 
 ---