fix: typos in documentation files

caching/etc/caching.urm.puml

@@ -13,7 +13,7 @@ package com.iluwatar.caching {
     - LOGGER : Logger {static}
     + App()
     + main(args : String[]) {static}
-    + useCacheAsideStategy()
+    + useCacheAsideStrategy()
     + useReadAndWriteThroughStrategy()
     + useReadThroughAndWriteAroundStrategy()
     + useReadThroughAndWriteBehindStrategy()
@@ -116,4 +116,4 @@ Node -->  "-previous" Node
 AppManager -->  "-cachingPolicy" CachingPolicy
 Node -->  "-userAccount" UserAccount
 CacheStore -->  "-cache" LruCache
-@enduml
+@enduml

caching/src/main/java/com/iluwatar/caching/App.java

@@ -133,7 +133,7 @@ public static void main(final String[] args) {
     LOGGER.info(splitLine);
     app.useReadThroughAndWriteBehindStrategy();
     LOGGER.info(splitLine);
-    app.useCacheAsideStategy();
+    app.useCacheAsideStrategy();
     LOGGER.info(splitLine);
   }
 
@@ -224,7 +224,7 @@ public void useReadThroughAndWriteBehindStrategy() {
   /**
    * Cache-Aside.
    */
-  public void useCacheAsideStategy() {
+  public void useCacheAsideStrategy() {
     LOGGER.info("# CachingPolicy.ASIDE");
     appManager.initCachingPolicy(CachingPolicy.ASIDE);
     LOGGER.info(appManager.printCacheContent());

caching/src/test/java/com/iluwatar/caching/CachingTest.java

@@ -68,6 +68,6 @@ void testReadThroughAndWriteBehindStrategy() {
   @Test
   void testCacheAsideStrategy() {
     assertNotNull(app);
-    app.useCacheAsideStategy();
+    app.useCacheAsideStrategy();
   }
 }

money/src/main/java/com/iluwatar/CannotSubtractException.java

@@ -1,6 +1,6 @@
 package com.iluwatar;
 /**
- * An exception for when the user tries to subtract two diffrent currencies or subtract an amount he doesn't have.
+ * An exception for when the user tries to subtract two different currencies or subtract an amount he doesn't have.
  */
 public class CannotSubtractException extends Exception {
   /**
@@ -12,4 +12,4 @@ public CannotSubtractException(String message) {
     super(message);
   }
 
-}
+}

update-method/etc/update-method.urm.puml

@@ -20,7 +20,7 @@ package com.iluwatar.updatemethod {
     - PATROLLING_RIGHT_BOUNDING : int {static}
     # patrollingLeft : boolean
     + Skeleton(id : int)
-    + Skeleton(id : int, postition : int)
+    + Skeleton(id : int, position : int)
     + update()
   }
   class Statue {
@@ -48,4 +48,4 @@ package com.iluwatar.updatemethod {
 World -->  "-entities" Entity
 Skeleton --|> Entity 
 Statue --|> Entity 
-@enduml
+@enduml