[skip ci]Fix golint error in distributed/querynode/param_table.go (#9639)

Signed-off-by: Ncai.zhang <cai.zhang@zilliz.com>

internal/distributed/querynode/param_table.go

@@ -23,9 +23,12 @@ import (
 	"github.com/milvus-io/milvus/internal/util/paramtable"
 )
 
+// Params is a package scoped variable of type ParamTable.
 var Params ParamTable
 var once sync.Once
 
+// ParamTable is a derived struct of paramtable.BaseTable. It achieves Composition by
+// embedding paramtable.BaseTable. It is used to quickly and easily access the system configuration.
 type ParamTable struct {
 	paramtable.BaseTable
 
@@ -42,6 +45,7 @@ type ParamTable struct {
 	ServerMaxRecvSize int
 }
 
+// Init is used to initialize configuration items.
 func (pt *ParamTable) Init() {
 	once.Do(func() {
 		pt.BaseTable.Init()
@@ -59,10 +63,12 @@ func (pt *ParamTable) Init() {
 	})
 }
 
+// LoadFromArgs is used to initialize configuration items from args.
 func (pt *ParamTable) LoadFromArgs() {
 
 }
 
+// LoadFromEnv is used to initialize configuration items from env.
 func (pt *ParamTable) LoadFromEnv() {
 	Params.QueryNodeIP = funcutil.GetLocalIP()
 }