docs: blocking threads feature page missing [skip ci]

docs/content/features/blocking-threads.md

@@ -0,0 +1,17 @@
+# Blocking Threads Customization
+
+**SWS** allows limiting the number of blocking threads powered by the [Tokio](https://tokio.rs/) runtime.
+
+This feature can be controlled by the numeric `-b, --max-blocking-threads` option or the equivalent [SERVER_MAX_BLOCKING_THREADS](./../configuration/environment-variables.md#server_max_blocking_threads) env.
+
+!!! info "WebAssembly"
+    We use `20` in [Wasm](https://webassembly.org/) by default and `512` in native environments (Tokio's default). See [Tokio ` max_blocking_threads` API](https://docs.rs/tokio/latest/tokio/runtime/struct.Builder.html#method.max_blocking_threads) for more details.
+
+Below is an example.
+
+```sh
+static-web-server \
+    --port 8787 \
+    --root ./my-public-dir \
+    --max-blocking-threads 20
+```

docs/content/features/worker-threads.md

@@ -2,6 +2,8 @@
 
 **SWS** allows customizing the number of worker threads powered by the [Tokio](https://tokio.rs/) runtime.
 
+See [Tokio ` worker_threads` API](https://docs.rs/tokio/latest/tokio/runtime/struct.Builder.html#method.worker_threads).
+
 This feature can be controlled by the numeric `-n, --threads-multiplier` option or the equivalent [SERVER_THREADS_MULTIPLIER](./../configuration/environment-variables.md#server_threads_multiplier) env.
 
 ## Worker threads multiplier
@@ -21,8 +23,11 @@ The formula used is the following:
 !!! tip "Tip"
     When the `--threads-multiplier` input value is `0` or `1` then one thread per core is used (default value).
 
+!!! info "WebAssembly"
+    We use `2` threads per core in [Wasm](https://webassembly.org/) and `1` in native environments by default.
+
 !!! warn "Warn"
-    The number of worker threads result should be a number between `1` and `32,768` though it is advised to keep this value on the smaller side. See [Tokio ` worker_threads` API](https://docs.rs/tokio/1.12.0/tokio/runtime/struct.Builder.html#method.worker_threads) for more details.
+    The number of worker threads resulted should be a number between `1` and `32,768` though it is advised to keep this value on the smaller side. See [Tokio ` worker_threads` API](https://docs.rs/tokio/latest/tokio/runtime/struct.Builder.html#method.worker_threads) for more details.
 
 Below is an example of how to adjust the number of worker threads.
 

docs/mkdocs.yml

@@ -139,6 +139,7 @@ nav:
     - 'Graceful Shutdown': 'features/graceful-shutdown.md'
     - 'File Descriptor Socket Passing': './features/file-descriptor-socket-passing.md'
     - 'Worker Threads Customization': 'features/worker-threads.md'
+    - 'Blocking Threads Customization': 'features/blocking-threads.md'
     - 'Error Pages': 'features/error-pages.md'
     - 'Custom HTTP Headers': 'features/custom-http-headers.md'
     - 'URL Rewrites': 'features/url-rewrites.md'