fix: add liberica_native distribution & update readme (#10)

1. fix README spell error（librce->librca）
2. add liberica_native to shorname.lua

Co-authored-by: taowong <tao6wong@gmail.com>

Author: LordHumphrey

README.md

@@ -91,8 +91,8 @@ Liberica is a 100% open-source Java implementation. It is built from OpenJDK whi
 
 
 ```shell
-$ vfox install java x.y.z-librce
-$ vfox search java librce
+$ vfox install java x.y.z-librca
+$ vfox search java librca
 ```
 
 ## Liberica NIK (Bellsoft)

README_CN.md

@@ -108,8 +108,8 @@ Liberica 是 100% 的开源 Java 实现。它由 BellSoft 参与开发的 OpenJD
 JCK。Liberica 的所有支持版本还包含 JavaFX。
 
 ```shell
-$ vfox install java x.y.z-librce
-$ vfox search java librce
+$ vfox install java x.y.z-librca
+$ vfox search java librca
 ```
 
 ## Liberica NIK (Bellsoft)

lib/shortname.lua

@@ -8,6 +8,7 @@ local short_name = {
     ["oracle"] = "oracle",
     ["kona"] = "kona",
     ["librca"] = "liberica",
+    ["nik"] = "liberica_native",
     ["mandrel"] = "mandrel",
     ["ms"] = "microsoft",
     ["sapmchn"] = "sap_machine",