minor typo/grammar corrections (ronreiter#696)

Author: therearedoors

Diff for: tutorials/learn-cpp.org/en/Arrays.md

@@ -15,7 +15,7 @@ Now that we know the syntax for declaring an array, the solution for Q1 would be
 
     int marks[5];
 
-Now lets initialize the array in Q1. Suppose the 5 students marks are as 96,92,78,54 and 86, then we can give our array values as,
+Now let's initialize the array in Q1. Suppose the 5 students marks are as 96,92,78,54 and 86, then we can give our array values as,
 
     marks[0] = 96;
     marks[1] = 92;

Diff for: tutorials/learn-cpp.org/en/For loops.md

@@ -1,14 +1,14 @@
 Tutorial
 --------
-We use loops in programming to repeat execution of a block of code instead of repeating the entire code. In C ++ we have 3 types of loops:
+We use loops in programming to repeat execution of a block of code instead of repeating the entire code. In C++ we have 3 types of loops:
  - for-loops
  - while loops
  - do-while loops.
 
 The execution of a loop can be controlled using the following keywords
  - break - terminates the loop (or switch) -statement and transfers execution to the statement directly after the loop
  - continue - will cause the loop to process to the next element skipping the current one
- - goto LABEL - transferes control to the specified label. IT IS NOT ADVISED TO USE THIS STATEMENT!
+ - goto LABEL - transfers control to the specified label. IT IS NOT ADVISED TO USE THIS STATEMENT!
 
 ### "for" loop
 

Diff for: tutorials/learn-cpp.org/en/Functions.md

@@ -38,9 +38,9 @@ Another example:
 
 Most commonly, functions are placed outside of the Main function.
 
-Excercise
+Exercise
 ---------
-In this excercise, you will create a function that prints out the sum of the given variables, a, b, and c. Below is the given code.
+In this exercise, you will create a function that prints out the sum of the given variables, a, b, and c. Below is the given code.
 
 Tutorial Code
 -------------

Diff for: tutorials/learn-cpp.org/en/Structures.md

@@ -12,7 +12,7 @@ A structure is basically a user-defined datatype which consists of other datatyp
     //This is how you'll usually define a structure    
     using namespace std;
     struct MyOwnStructure { // keyword "struct" followed by a name, followed by braces containing the datatypes you like, followed by a semicolon
-        int poperty_one;
+        int property_one;
         int property_two;
         char property_three;
         bool property_four;