Remane [en] version

Author: tshemsedinov

Exercises.md renamed to Exercises.en.md

@@ -2,11 +2,12 @@
 
 ## Identifiers
 
-1. Define variable to store your name.
-2. Define constant to store your birth year.
+1. Define variable to store your name as a string.
+2. Define constant to store your birth year as a number.
 3. Prepare function to print greeting with single argument.
-4. Call function passing value.
+4. Call function passing value as literal.
 5. Call function passing variable.
+6. Call function passing constant.
 
 ## Loop
 
@@ -17,9 +18,9 @@
 
 1. Implement function `average` with signature
 `average(a: number, b: number): number` calculating average (arithmetic mean).
-2. Implement function `square`  with signature
+2. Implement function `square` with signature
 `square(x: number): number` calculating square of x.
-3. Implement function `cube`  with signature
+3. Implement function `cube` with signature
 `cube(x: number): number` calculating cube of x.
 4. Call functions `square` and `cube` in loop, then pass their results to
 function `average`. Print what `average` returns.
@@ -32,13 +33,13 @@ function `average`. Print what `average` returns.
 Explain script behaviour.
 4. Implement function `createUser` with signature
 `createUser(name: string, city: string): object`. Example:
-`createUser('Marcus Aurelius', 'Roma')` will return
+`createUser('Marcus Aurelius', 'Roma')` will return object
 `{ name: 'Marcus Aurelius', city: 'Roma' }`
 
 ## Array
 
 1. Define array of objects with two fields: `name` and `phone` (phone book).
-Example: `{ name: 'Marcus Aurelius', phone: '+380445555555' }`.
+Example: `{ name: 'Marcus Aurelius', phone: '+380445554433' }`.
 2. Implement function `findPhoneByName` with signature
 `findPhoneByName(name: string): string`. Returning phone from that object
 where field `name` equals argument `name`. Use `for` loop for this search.