Add share cards

api/internal/store/blocks_test.go

@@ -201,14 +201,14 @@ func TestMigrate_AddsChainColumn(t *testing.T) {
 	}
 	db.Close()
 
-	// Open via our store — migrate() must add the chain column.
+	// Open via our store, migrate() must add the chain column.
 	s, err := Open(f.Name())
 	if err != nil {
 		t.Fatalf("Open after migration: %v", err)
 	}
 	defer s.Close()
 
-	// Insert a block with a chain value — would fail if migration didn't add
+	// Insert a block with a chain value, would fail if migration didn't add
 	// the column.
 	inserted, err := s.InsertBlock(Block{
 		Height:  1000,