task: Fix broken links (#1817)

* Fix some broken links

* Remove extra space

* Update filename

* Fix some links in localization folders

* Fix link

Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>

localization/ko/strategy/README.md

@@ -163,7 +163,7 @@ public class LambdaStrategy {
 
 ## 클래스 다이어그램
 
-![alt text](./etc/strategy_urm.png "Strategy")
+![alt text](../../../strategy/etc/strategy_urm.png "Strategy")
 
 ## 적용 가능성
 

localization/zh/active-object/README.md

@@ -122,4 +122,4 @@ public class Orc extends ActiveCreature {
 
 ## 类图
 
-![alt text](../../../active-object/etc/active-object.urm.PNG "Active Object class diagram")
+![alt text](../../../active-object/etc/active-object.urm.png "Active Object class diagram")

localization/zh/chain/README.md

@@ -139,7 +139,7 @@ king.makeRequest(new Request(RequestType.COLLECT_TAX, "collect tax")); // Orc so
 ```
 
 ## 类图
-![alt text](../../../chain/etc/chain.urm.png "Chain of Responsibility class diagram")
+![alt text](../../../chain-of-responsibility/etc/chain-of-responsibility.urm.png "Chain of Responsibility class diagram")
 
 ## 适用性
 使用责任链模式当