Fix some typos

common/hugo/hugo.go

@@ -426,7 +426,7 @@ func DeprecateLevel(item, alternative, version string, level logg.Level) {
 	loggers.Log().Logger().WithLevel(level).WithField(loggers.FieldNameCmd, "deprecated").Logf(msg)
 }
 
-// We ususally do about one minor version a month.
+// We usually do about one minor version a month.
 // We want people to run at least the current and previous version without any warnings.
 // We want people who don't update Hugo that often to see the warnings and errors before we remove the feature.
 func deprecationLogLevelFromVersion(ver string) logg.Level {

hugolib/doctree/nodeshifttree.go

@@ -59,7 +59,7 @@ type (
 )
 
 // NodeShiftTree is the root of a tree that can be shaped using the Shape method.
-// Note that multipled shapes of the same tree is meant to be used concurrently,
+// Note that multiplied shapes of the same tree is meant to be used concurrently,
 // so use the applicable locking when needed.
 type NodeShiftTree[T any] struct {
 	tree *radix.Tree

markup/blackfriday/anchors.go

@@ -11,7 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// Package blackfriday holds some compability functions for the old Blackfriday v1 Markdown engine.
+// Package blackfriday holds some compatibility functions for the old Blackfriday v1 Markdown engine.
 package blackfriday
 
 import "unicode"