chore: fix some comments

docs/gravity-bridge/dev-setup-guide.md

@@ -118,7 +118,7 @@ message DelegateKeysSignMsg {
 }
 ```
 
-Use your favorite protobuf library to encode the message, and use your favorite web3 library to do the messge signing,
+Use your favorite protobuf library to encode the message, and use your favorite web3 library to do the message signing,
 for example, this is how it could be done in python:
 
 ```python

memiavl/db.go

@@ -488,7 +488,7 @@ func (db *DB) checkBackgroundSnapshotRewrite() error {
 	return nil
 }
 
-// pruneSnapshot prune the old snapshots
+// pruneSnapshots prune the old snapshots
 func (db *DB) pruneSnapshots() {
 	// wait until last prune finish
 	db.pruneSnapshotLock.Lock()

memiavl/snapshot.go

@@ -67,7 +67,7 @@ func OpenSnapshot(snapshotDir string) (snapshot *Snapshot, err error) {
 		return nil, err
 	}
 	if len(bz) != SizeMetadata {
-		return nil, fmt.Errorf("wrong metadata file size, expcted: %d, found: %d", SizeMetadata, len(bz))
+		return nil, fmt.Errorf("wrong metadata file size, expected: %d, found: %d", SizeMetadata, len(bz))
 	}
 
 	magic := binary.LittleEndian.Uint32(bz)

versiondb/extsort/sort.go

@@ -1,4 +1,4 @@
-// Package extsort implements external sorting algorithm, it has several differnet design choices compared with alternatives like https://github.com/lanrat/extsort:
+// Package extsort implements external sorting algorithm, it has several different design choices compared with alternatives like https://github.com/lanrat/extsort:
 //   - apply efficient compressions(delta encoding + snappy) to the chunk files to reduce IO cost,
 //     since the items are sorted, delta encoding should be effective to it, and snappy is pretty efficient.
 //   - chunks are stored in separate temporary files, so the chunk sorting and saving can run in parallel (eats more ram though).
@@ -25,7 +25,7 @@ type Options struct {
 	DeltaEncoding bool
 	// if apply snappy compression to the items in sorted chunk
 	SnappyCompression bool
-	// Maxiumum uncompressed size of the sorted chunk
+	// Maximum uncompressed size of the sorted chunk
 	MaxChunkSize int64
 	// function that compares two items
 	LesserFunc LesserFunc