Correct UK dialing code and fix typo in the International Calling Connoisseur instructions (#2925)

[no important files changed]

Author: rkabhishek

exercises/concept/international-calling-connoisseur/.docs/instructions.md

@@ -63,12 +63,12 @@ dialingCodes.addNewDialingCode(39, "Vatican City");
 
 Its rare, but mistakes can be made.
 To correct the mistake, we will need to know what dialing code the country is currently mapped to.
-To find which dialing code needs to be corrected, implement the `findDialingCode` method that takes in a map of dialing codes an a country and returns the country's dialing code.
+To find which dialing code needs to be corrected, implement the `findDialingCode` method that takes in a map of dialing codes and a country and returns the country's dialing code.
 Return `null` if the country is _not_ in the map.
 
 ```java
 DialingCodes dialingCodes = new DialingCodes();
-dialingCodes.addDialingCode(43, "UK");
+dialingCodes.addDialingCode(44, "UK");
 dialingCodes.findDialingCode("UK");
 // => 44
 

exercises/concept/international-calling-connoisseur/src/test/java/DialingCodesTest.java

@@ -113,17 +113,17 @@ public void testAddNewDialingCodeLeavesExistingCountry() {
     @DisplayName("findDialingCode returns a country's dialing code")
     public void testFindDialingCode() {
         DialingCodes dialingCodes = new DialingCodes();
-        dialingCodes.addNewDialingCode(43, "UK");
+        dialingCodes.addNewDialingCode(44, "UK");
 
-        assertThat(dialingCodes.findDialingCode("UK")).isEqualTo(43);
+        assertThat(dialingCodes.findDialingCode("UK")).isEqualTo(44);
     }
 
     @Test
     @Tag("task:5")
     @DisplayName("findDialingCode returns null for country not yet added")
     public void testFindDialingCodeWithUnlistedCountry() {
         DialingCodes dialingCodes = new DialingCodes();
-        dialingCodes.addNewDialingCode(43, "UK");
+        dialingCodes.addNewDialingCode(44, "UK");
 
         assertThat(dialingCodes.findDialingCode("Unlisted")).isNull();
     }