feat: Update readme.md for rueidisaside for LuaLocking (#732)

* feat: Add Lua Locking for Redis < 7 Compatibility

* feat: address comment

* feat: add LuaLock flag to clientOption

* feat: add tests for client with lua lock

* feat: update readme for LuaLock usage in rueidisaside SET NX GET

* Update README.md

* feat: update from suggestions

Co-authored-by: Rueian <[email protected]>

---------

Co-authored-by: Anuragkillswitch <[email protected]>
Co-authored-by: Rueian <[email protected]>

Author: SoulPancake

rueidisaside/README.md

@@ -110,4 +110,19 @@ func main() {
 
 ## Limitation
 
-Currently, requires Redis >= 7.0.
+Currently, requires Redis >= 7.0.
+However, the `UseLuaLock` option is available and allows you to use the `rueidisaside` with older Redis versions < 7.0 as well.
+
+To configure the Lua fallback option:
+
+```go
+client, err := rueidisaside.NewClient(rueidisaside.ClientOption{
+    ClientOption: rueidis.ClientOption{
+        InitAddress: []string{"127.0.0.1:6379"},
+    },
+    UseLuaLock: true, // Enable Lua script for older Redis versions
+})
+if err != nil {
+    panic(err)
+}
+```