Docs for deno test + minor other changes (#5185)

* Added fs events example.
* Added docs for `deno test`.
* Renamed file server example.
* Unified markdown code types.
* Removed plugin topics from TOC.
* Fixed links.

1 files changed, 18 insertions, 0 deletions

diff --git a/docs/examples/file_system_events.md b/docs/examples/file_system_events.md
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+++ b/docs/examples/file_system_events.md
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+### File system events
+
+To poll for file system events:
+
+```ts
+const watcher = Deno.watchFs("/");
+for await (const event of watcher) {
+  console.log(">>>> event", event);
+  // { kind: "create", paths: [ "/foo.txt" ] }
+}
+```
+
+Note that the exact ordering of the events can vary between operating systems.
+This feature uses different syscalls depending on the platform:
+
+- Linux: inotify
+- macOS: FSEvents
+- Windows: ReadDirectoryChangesW