docs: fix typos in some comments

fix typos in some comments

Pull-Request: #5338.

core/src/transport/dummy.rs

@@ -94,7 +94,7 @@ impl<TOut> Transport for DummyTransport<TOut> {
     }
 }
 
-/// Implementation of `AsyncRead` and `AsyncWrite`. Not meant to be instanciated.
+/// Implementation of `AsyncRead` and `AsyncWrite`. Not meant to be instantiated.
 pub struct DummyStream(());
 
 impl fmt::Debug for DummyStream {

protocols/gossipsub/src/config.rs

@@ -292,7 +292,7 @@ impl Config {
         self.mesh_outbound_min
     }
 
-    /// Number of heartbeat ticks that specifcy the interval in which opportunistic grafting is
+    /// Number of heartbeat ticks that specify the interval in which opportunistic grafting is
     /// applied. Every `opportunistic_graft_ticks` we will attempt to select some high-scoring mesh
     /// peers to replace lower-scoring ones, if the median score of our mesh peers falls below a
     /// threshold (see <https://godoc.org/github.com/libp2p/go-libp2p-pubsub#PeerScoreThresholds>).
@@ -694,7 +694,7 @@ impl ConfigBuilder {
         self
     }
 
-    /// Number of heartbeat ticks that specifcy the interval in which opportunistic grafting is
+    /// Number of heartbeat ticks that specify the interval in which opportunistic grafting is
     /// applied. Every `opportunistic_graft_ticks` we will attempt to select some high-scoring mesh
     /// peers to replace lower-scoring ones, if the median score of our mesh peers falls below a
     /// threshold (see <https://godoc.org/github.com/libp2p/go-libp2p-pubsub#PeerScoreThresholds>).

protocols/kad/src/kbucket.rs

@@ -344,7 +344,7 @@ enum ClosestBucketsIterState {
     /// The starting state of the iterator yields the first bucket index and
     /// then transitions to `ZoomIn`.
     Start(BucketIndex),
-    /// The iterator "zooms in" to yield the next bucket cotaining nodes that
+    /// The iterator "zooms in" to yield the next bucket containing nodes that
     /// are incrementally closer to the local node but further from the `target`.
     /// These buckets are identified by a `1` in the corresponding bit position
     /// of the distance bit string. When bucket `0` is reached, the iterator

protocols/kad/src/kbucket/entry.rs

@@ -18,7 +18,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
 
-//! The `Entry` API for quering and modifying the entries of a `KBucketsTable`
+//! The `Entry` API for querying and modifying the entries of a `KBucketsTable`
 //! representing the nodes participating in the Kademlia DHT.
 
 pub(crate) use super::bucket::{AppliedPending, InsertResult, Node, K_VALUE};

protocols/rendezvous/src/server.rs

@@ -442,7 +442,7 @@ impl Registrations {
         match (discover_namespace.as_ref(), cookie_namespace) {
             // discover all namespace but cookie is specific to a namespace? => bad
             (None, Some(_)) => return Err(CookieNamespaceMismatch),
-            // discover for a namespace but cookie is for a different namesapce? => bad
+            // discover for a namespace but cookie is for a different namespace? => bad
             (Some(namespace), Some(cookie_namespace)) if namespace != cookie_namespace => {
                 return Err(CookieNamespaceMismatch)
             }