docs: fix typos discovered by codespell (#2534)

## Description

<!-- A summary of what this pull request achieves and a rough list of
changes. -->

% `codespell
--ignore-words-list=ans,crate,inout,ratatui,ser,stayin,swarmin,worl`
* https://github.com/codespell-project/codespell

## Breaking Changes

<!-- Optional, if there are any breaking changes document them,
including how to migrate older code. -->

## Notes & open questions

<!-- Any notes, remarks or open questions you have to make about the PR.
-->

## Change checklist

- [x] Self-review.
- [ ] Documentation updates following the [style
guide](https://rust-lang.github.io/rfcs/1574-more-api-documentation-conventions.html#appendix-a-full-conventions-text),
if relevant.
- [ ] Tests if relevant.
- [ ] All breaking changes documented.

Author: cclauss

.github/workflows/ci.yml

@@ -450,3 +450,10 @@ jobs:
         continue-on-error: true
         run: |
           docker kill $(docker ps -q)
+
+  codespell:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - run: pip install --user codespell[toml]
+    - run: codespell --ignore-words-list=ans,crate,inout,ratatui,ser,stayin,swarmin,worl --skip=CHANGELOG.md

CONTRIBUTING.md

@@ -34,7 +34,7 @@ Code contributions to Iroh are greatly appreciated. Here is the general workflow
 
    - **General code guidelines**
 
-     - When possible, please document relevant pieces of code following the [rust documentation conventions][docconventions]. For more information on how the rust documentation system works check the [rustdoc docummentation][rustdoc].
+     - When possible, please document relevant pieces of code following the [rust documentation conventions][docconventions]. For more information on how the rust documentation system works check the [rustdoc documentation][rustdoc].
      - Comment your code. It will be useful for your reviewer and future contributors.
 
    - **Pull request titles**

iroh-dns-server/src/store.rs

@@ -57,7 +57,7 @@ impl ZoneStore {
         Ok(Self::new(packet_store))
     }
 
-    /// Configure a pkarr client for resolution of packets from the bittorent mainline DHT.
+    /// Configure a pkarr client for resolution of packets from the bittorrent mainline DHT.
     ///
     /// This will be used only as a fallback if there is no local info available.
     ///

iroh-docs/src/engine.rs

@@ -393,7 +393,7 @@ pub struct DefaultAuthor {
 impl DefaultAuthor {
     /// Load the default author from storage.
     ///
-    /// If the storage is empty creates a new author and perists it.
+    /// If the storage is empty creates a new author and persists it.
     pub async fn load(storage: DefaultAuthorStorage, docs_store: &SyncHandle) -> Result<Self> {
         let value = storage.load(docs_store).await?;
         Ok(Self {

iroh-net/bench/src/iroh.rs

@@ -81,7 +81,7 @@ pub fn transport_config(max_streams: usize, initial_mtu: u16) -> TransportConfig
     config.max_concurrent_uni_streams(max_streams.try_into().unwrap());
     config.initial_mtu(initial_mtu);
 
-    // TODO: reenable when we upgrade quinn version
+    // TODO: re-enable when we upgrade quinn version
     // let mut acks = quinn::AckFrequencyConfig::default();
     // acks.ack_eliciting_threshold(10u32.into());
     // config.ack_frequency_config(Some(acks));

iroh-net/bench/src/quinn.rs

@@ -97,7 +97,7 @@ pub fn transport_config(max_streams: usize, initial_mtu: u16) -> TransportConfig
     config.max_concurrent_uni_streams(max_streams.try_into().unwrap());
     config.initial_mtu(initial_mtu);
 
-    // TODO: reenable when we upgrade quinn version
+    // TODO: re-enable when we upgrade quinn version
     // let mut acks = quinn::AckFrequencyConfig::default();
     // acks.ack_eliciting_threshold(10u32.into());
     // config.ack_frequency_config(Some(acks));

iroh-net/src/dns.rs

@@ -342,7 +342,7 @@ impl<A: Iterator<Item = IpAddr>, B: Iterator<Item = IpAddr>> Iterator for Lookup
 /// Staggers calls to the future F with the given delays.
 ///
 /// The first call is performed immediately. The first call to succeed generates an Ok result
-/// ignoring any previous error. If all calls fail, an error sumarizing all errors is returned.
+/// ignoring any previous error. If all calls fail, an error summarizing all errors is returned.
 async fn stagger_call<T, F: Fn() -> Fut, Fut: Future<Output = Result<T>>>(
     f: F,
     delays_ms: &[u64],

iroh-net/src/magicsock.rs

@@ -1554,7 +1554,7 @@ impl Stream for DirectAddrsStream {
                         // When we start up we might initially have empty local endpoints as
                         // the magic socket has not yet figured this out.  Later on this set
                         // should never be empty.  However even if it was the magicsock
-                        // would be in a state not very useable so skipping those events is
+                        // would be in a state not very usable so skipping those events is
                         // probably fine.
                         // To make sure we install the right waker we loop rather than
                         // returning Poll::Pending immediately here.

iroh-net/src/netcheck/reportgen.rs

@@ -1339,7 +1339,7 @@ mod tests {
             node: Arc::new(relay),
         };
 
-        // A singe ICMP packet might get lost.  Try several and take the first.
+        // A single ICMP packet might get lost.  Try several and take the first.
         let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel();
         let mut tasks = JoinSet::new();
         for i in 0..8 {

iroh-net/src/netcheck/reportgen/probes.rs

@@ -203,7 +203,7 @@ impl ProbePlan {
         let mut plan = Self(BTreeSet::new());
 
         // The first time we need add probes after the STUN we record this delay, so that
-        // further relay server can re-use this delay.
+        // further relay server can reuse this delay.
         let mut max_stun_delay: Option<Duration> = None;
 
         for relay_node in relay_map.nodes() {
@@ -284,7 +284,7 @@ impl ProbePlan {
         let mut plan = Self(Default::default());
 
         // The first time we need add probes after the STUN we record this delay, so that
-        // further relay servers can re-use this delay.
+        // further relay servers can reuse this delay.
         let mut max_stun_delay: Option<Duration> = None;
 
         let had_stun_ipv4 = !last_report.relay_v4_latency.is_empty();