Fix typos, some markup fancies

Author: sergeyromanov

unicode-introduction.pod

@@ -38,7 +38,7 @@ Very simply put, main part of the Unicode standart is just a giant table,
 which assigns a number to every L<glyph|https://en.wikipedia.org/wiki/Glyph>,
 would that be a letter, a punctuation, a diacritic and so on. Those numbers
 are called I<code points> and normally a Unicode code point is referred to by
-writing I<U+> followed by its in number hexadecimal form. For example, B<U+0050>
+writing I<U+> followed by its number in hexadecimal form. For example, B<U+0050>
 refers to B<LATIN CAPITAL LETTER P>, and B<U+00A9> is the B<COPYRIGHT SIGN> etc.
 
 But this giant table of code points itself yet has nothing to do with
@@ -70,9 +70,9 @@ right now, instead we'll show you possible solution to avoid this warning:
     binmode FILEHANDLE, ":encoding(UTF-8)";
 
 This command should be put before your printing statement and it will specify
-the encoding layer for desired FILEHANDLE. So, to be able to print to
-console FILEHANDLE should be STDOUT, which is the filehandle used by Perl's
-C<print> and C<say> functions by default.
+the encoding layer for desired C<FILEHANDLE>. So, to be able to print to
+console C<FILEHANDLE> should be C<STDOUT>, which is the filehandle used by
+Perl's C<print> and C<say> functions by default.
 
 =head2 Printing symbols
 
@@ -141,7 +141,7 @@ B<Hint>: use Unicode B<NOT SIGN>.
 =head2 Unicode in your source
 
 But you don't have to type code points or even their names everytime. You
-can use any Unicode symbol in source code, for example in you string
+can use any Unicode symbol in source code, for example in your string
 literals. All you have to do, is to use C<utf8> pragma and then to save your
 script as UTF-8 text file. Watch this:
 
@@ -212,7 +212,7 @@ Decode you input data using L<Encode> module.
 
 =item *
 
-Do some some stuff with you I<textual> data.
+Do some some stuff with your I<textual> data.
 
 =item *
 
@@ -242,7 +242,7 @@ This is obviously true for single-byte encodings, such as I<latin1>.
 
     say length encode('latin1', '$'); # says 1
 
-But since Unicode now defines more then 1 million code points (1,114,112 to
+But since Unicode now defines more then B<1 million> code points (1,114,112 to
 be precise) it's absolutely impossible to use one byte (which can take only
 256 combinations of bits) to hold them all. That's where
 L<UTF encodings|Encode::Unicode> step in.