Add wasefire self-update command (#689)

Also self-update at startup for `cargo install` builds, since those lack
the host platform.

book/src/quick/README.md

@@ -22,7 +22,8 @@ You can test that the CLI is correctly installed by running `wasefire help`.
 
 You can also add shell completion with `wasefire completion`. You need to place the generated script
 where you shell will interpret it, which depends on your shell and configuration. If you use bash
-and have root access, you can copy it to `/usr/share/bash-completion/completions/wasefire`.
+and have root access, you can copy it to `/etc/bash_completion.d/wasefire` or
+`/usr/share/bash-completion/completions/wasefire`.
 
 ### GitHub Codespace
 

crates/cli-tools/CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## 0.2.1-git
+
+### Minor
+
+- Add `fs::targz_{list,extract}()` to manipulate tarballs
+- Add `fs::download()` for download files
+
 ## 0.2.0
 
 ### Major
@@ -49,4 +56,4 @@
 
 ## 0.1.0
 
-<!-- Increment to skip CHANGELOG.md test: 0 -->
+<!-- Increment to skip CHANGELOG.md test: 1 -->