fix hw

docs/source/example.rst

@@ -10,15 +10,15 @@ D_ is complex multi-paradigm programming language.
 Hellow Wolrd!
 ~~~~~~~~~~~~~~
 
-To import ``MODULE`` from `C Standard library`_ use ``import core.stdc.MODULE;`` construction.
-
 The following well known С program prints "Hello, World!" to the standard output.
 
 .. literalinclude:: ../../examples/helloworld.c
     :language: c
     :tab-width: 4 
 
-It can be easily translated to D_:
+
+It can be easily translated to D_.
+Use ``import core.stdc.MODULE;`` construction to import ``MODULE`` from `C Standard library`_.
 
 .. literalinclude:: ../../examples/helloworld1.d
     :language: d
@@ -27,7 +27,7 @@ It can be easily translated to D_:
 .. seealso:: `Programming in D for C Programmers`_.
 
 
-Phobos_ based "Hello, World!" program looks simpler:
+Common D_ "Hello, World!" program based on Phobos_ looks simpler:
 
 .. literalinclude:: ../../examples/helloworld2.d
     :language: d

examples/helloworld1.d

@@ -1,9 +1,11 @@
 import core.stdc.stdio;
 
-immutable char[] nullTerminatedStr = "Hello, World!\0"; // ends with null!
+// ends with null!
+immutable char[] nullTerminatedStr = "Hello, World!\0"; 
 
 int main()
 {
-	puts(nullTerminatedStr.ptr); // calls external C function
+	// calls external C function
+	puts(nullTerminatedStr.ptr);
 	return 0;
 }

examples/helloworld2.d

@@ -1,8 +1,9 @@
-import std.stdio;
-
+//Deduces the type of a declared variable from its initialization expression
 immutable str = "Hello, World!";
 
 void main()
 {
+	//Scoped and selective imports can be used.
+	import std.stdio : writeln;
 	writeln(str);
 }