fix names

Author: louisrli

module2-database-technologies/r2-introduction-to-relational-databases/README.md

@@ -34,9 +34,9 @@ visualization of the data.
 
 **id**|**first\_name**|**last\_name**|**registered\_at**
 :-----:|:-----:|:-----:|:-----:
-1|Ammar|Sammour|2012-01-02
-2|Halit|Batur|2012-01-03
-3|Shrreya|Bhatachaarya|2012-01-05
+1|Joe|Smith|2012-01-02
+2|Jane|Doe|2012-01-03
+3|Susan|Stone|2012-01-05
 
 The `Order` table may look something like so:
 
@@ -53,7 +53,7 @@ called a **foreign key** (or sometimes join key). This column creates a
 customer the order belongs. This is the core of relational databases: expressing
 relations between entities.
 
-This table says that Ammar has ordered a keyboard, mouse, and cookies. He has
-three orders, because there are three rows with `customer_id = 1`. Halit has ordered one item: rice (`customer_id = 2`).
+This table says that Joe has ordered a keyboard, mouse, and cookies. He has
+three orders, because there are three rows with `customer_id = 1`. Jane has ordered one item: rice (`customer_id = 2`).
 
 

module2-database-technologies/r2.2-sql-queries/README.md

@@ -29,8 +29,8 @@ manually provide an id or a created timestamp, these are automatically generated
 by MySQL.
 
 ```sql
-INSERT INTO customer (first_name, last_name) VALUES ('Halit', 'Batur');
-INSERT INTO customer (first_name, last_name) VALUES ('Ammar', 'Sammour');
+INSERT INTO customer (first_name, last_name) VALUES ('Jane', 'Doe');
+INSERT INTO customer (first_name, last_name) VALUES ('Joe', 'Smith');
 ```
 
 Now let's `SELECT` the data -- that is, let's view the data.
@@ -43,8 +43,8 @@ The `*` symbol tells us to get all columns. You should see something like this:
 ```
  id | first_name | last_name |          created_at
 ----+------------+-----------+-------------------------------
-  1 | Halit      | Batur     | 2021-08-29 03:33:14.559122-07
-  2 | Ammar      | Sammour   | 2021-08-29 03:34:08.522222-07
+  1 | Jane      | Doe     | 2021-08-29 03:33:14.559122-07
+  2 | Joe      | Smith   | 2021-08-29 03:34:08.522222-07
 (1 row)
 ```