[GP-165] Rename 2-2-7-hash-table to 2-2-9-hash-table

Author: BoSerhii

2-0-data-structures-and-algorithms/2-2-7-hash-table/README.md renamed to 2-0-data-structures-and-algorithms/2-2-9-hash-table/README.md

@@ -9,7 +9,7 @@
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>2-2-7-hash-table</artifactId>
+    <artifactId>2-2-9-hash-table</artifactId>
 
 
 </project>

2-0-data-structures-and-algorithms/2-2-7-hash-table/pom.xml renamed to 2-0-data-structures-and-algorithms/2-2-9-hash-table/pom.xml

@@ -11,7 +11,7 @@
         <module>2-2-4-linked-list</module>
         <module>2-2-5-array-list</module>
         <module>2-2-6-binary-search-tree</module>
-        <module>2-2-7-hash-table</module>
+        <module>2-2-9-hash-table</module>
         <module>data-structures-and-algorithms-util</module>
     </modules>
 

2-0-data-structures-and-algorithms/2-2-7-hash-table/src/main/java/com/bobocode/cs/HashTable.java renamed to 2-0-data-structures-and-algorithms/2-2-9-hash-table/src/main/java/com/bobocode/cs/HashTable.java

@@ -17,7 +17,7 @@ Java SE 8+ provides a rich API that enables functional programming features base
 * Stream API
 * Optional API
 
-### At the end of this module you will be ablte to
+### At the end of this module you will be able to
 Write this
 ```java
 public List<Account> findAllGmailAccounts(List<Account> accounts) {
@@ -40,7 +40,7 @@ public List<Account> findAllGmailAccounts(List<Account> accounts) {
 ```
 Among other you will be able to
 * use **Funtional Interfaces** and **Lambdas** in order to **pass around functions** like first-class citizens ✅
-* **process data collections** in a **concise** and **easy to uderstnad** way using **Stream API** ✅
+* **process data collections** in a **concise** and **easy way to understand** using **Stream API** ✅
 * write **null-safe code** using **Optional API** ✅
 
 ### Learn or skip ? 

2-0-data-structures-and-algorithms/2-2-7-hash-table/src/main/java/com/bobocode/cs/Map.java renamed to 2-0-data-structures-and-algorithms/2-2-9-hash-table/src/main/java/com/bobocode/cs/Map.java

@@ -35,7 +35,7 @@ Imagine you need to add a new `methodX()` to the exercise. Here's the list of ac
 4. Push the changes
 5. Checkout `completed`
 6. Create a local branch from `completed` (let's call it `solution branch`)
-7. Merge your `exercise branch` into the `solution brnach`
+7. Merge your `exercise branch` into the `solution branch`
 8. Implement `methodX()` and make sure that tests pass
 9. Commit these changes to the `solution branch`
 10. Push the changes