fixed code block spacing in Calendar lib docs
diff --git a/user_guide_src/source/libraries/calendar.rst b/user_guide_src/source/libraries/calendar.rst
index b60b8e4..471fd64 100644
--- a/user_guide_src/source/libraries/calendar.rst
+++ b/user_guide_src/source/libraries/calendar.rst
@@ -49,11 +49,11 @@
 	$this->load->library('calendar');
 
 	$data = array(
-		3  => 'http://example.com/news/article/2006/03/',
-		7  => 'http://example.com/news/article/2006/07/',
-		13 => 'http://example.com/news/article/2006/13/',
-		26 => 'http://example.com/news/article/2006/26/'
-	);
+	               3  => 'http://example.com/news/article/2006/03/',
+	               7  => 'http://example.com/news/article/2006/07/',
+	               13 => 'http://example.com/news/article/2006/13/',
+	               26 => 'http://example.com/news/article/2006/26/'
+	             );
 
 	echo $this->calendar->generate(2006, 6, $data);
 
@@ -73,10 +73,10 @@
 the second parameter of the loading function. Here is an example::
 
 	$prefs = array (
-		'start_day'	=> 'saturday',
-		'month_type'   => 'long',
-		'day_type'	 => 'short'
-	);
+	               'start_day'    => 'saturday',
+	               'month_type'   => 'long',
+	               'day_type'     => 'short'
+	             );
 
 	$this->load->library('calendar', $prefs);
 
@@ -118,9 +118,9 @@
 to this example::
 
 	$prefs = array (
-				   'show_next_prev'  => TRUE,
-				   'next_prev_url'   => 'http://example.com/index.php/calendar/show/'
-				 );
+	               'show_next_prev'  => TRUE,
+	               'next_prev_url'   => 'http://example.com/index.php/calendar/show/'
+	             );
 
 	$this->load->library('calendar', $prefs);
 
@@ -145,35 +145,35 @@
 
 	$prefs['template'] = '
 
-		{table_open}<table border="0" cellpadding="0" cellspacing="0">{/table_open}
+	   {table_open}<table border="0" cellpadding="0" cellspacing="0">{/table_open}
 
-		{heading_row_start}<tr>{/heading_row_start}
+	   {heading_row_start}<tr>{/heading_row_start}
 
-		{heading_previous_cell}<th><a href="{previous_url}">&lt;&lt;</a></th>{/heading_previous_cell}
-		{heading_title_cell}<th colspan="{colspan}">{heading}</th>{/heading_title_cell}
-		{heading_next_cell}<th><a href="{next_url}">&gt;&gt;</a></th>{/heading_next_cell}
+	   {heading_previous_cell}<th><a href="{previous_url}">&lt;&lt;</a></th>{/heading_previous_cell}
+	   {heading_title_cell}<th colspan="{colspan}">{heading}</th>{/heading_title_cell}
+	   {heading_next_cell}<th><a href="{next_url}">&gt;&gt;</a></th>{/heading_next_cell}
 
-		{heading_row_end}</tr>{/heading_row_end}
+	   {heading_row_end}</tr>{/heading_row_end}
 
-		{week_row_start}<tr>{/week_row_start}
-		{week_day_cell}<td>{week_day}</td>{/week_day_cell}
-		{week_row_end}</tr>{/week_row_end}
+	   {week_row_start}<tr>{/week_row_start}
+	   {week_day_cell}<td>{week_day}</td>{/week_day_cell}
+	   {week_row_end}</tr>{/week_row_end}
 
-		{cal_row_start}<tr>{/cal_row_start}
-		{cal_cell_start}<td>{/cal_cell_start}
+	   {cal_row_start}<tr>{/cal_row_start}
+	   {cal_cell_start}<td>{/cal_cell_start}
 
-		{cal_cell_content}<a href="{content}">{day}</a>{/cal_cell_content}
-		{cal_cell_content_today}<div class="highlight"><a href="{content}">{day}</a></div>{/cal_cell_content_today}
+	   {cal_cell_content}<a href="{content}">{day}</a>{/cal_cell_content}
+	   {cal_cell_content_today}<div class="highlight"><a href="{content}">{day}</a></div>{/cal_cell_content_today}
 
-		{cal_cell_no_content}{day}{/cal_cell_no_content}
-		{cal_cell_no_content_today}<div class="highlight">{day}</div>{/cal_cell_no_content_today}
+	   {cal_cell_no_content}{day}{/cal_cell_no_content}
+	   {cal_cell_no_content_today}<div class="highlight">{day}</div>{/cal_cell_no_content_today}
 
-		{cal_cell_blank}&nbsp;{/cal_cell_blank}
+	   {cal_cell_blank}&nbsp;{/cal_cell_blank}
 
-		{cal_cell_end}</td>{/cal_cell_end}
-		{cal_row_end}</tr>{/cal_row_end}
+	   {cal_cell_end}</td>{/cal_cell_end}
+	   {cal_row_end}</tr>{/cal_row_end}
 
-		{table_close}</table>{/table_close}
+	   {table_close}</table>{/table_close}
 	';
 
 	$this->load->library('calendar', $prefs);