Rearranged begin-process block code

Fixed typo in example demo.ps1 and corresponding README entry

Demo/Demo.ps1

@@ -101,7 +101,7 @@ $markdown+=New-MDAlert -Lines $lines -Style Important
 
 $markdown+=New-MDParagraph -Lines "Multi line Alert with 'Tip' Style"
 $lines=@(
-    "Git is "
+    "Line 1"
     "Line 2"
 )
 $markdown+=New-MDAlert -Lines $lines -Style Tip

README.md

@@ -134,7 +134,7 @@ $markdown+=New-MDAlert -Lines $lines -Style Important
 
 $markdown+=New-MDParagraph -Lines "Multi line Alert with 'Tip' Style"
 $lines=@(
-    "Git is "
+    "Line 1"
     "Line 2"
 )
 $markdown+=New-MDAlert -Lines $lines -Style Tip
@@ -261,7 +261,7 @@ $markdown
 > Multi line Alert with 'Tip' Style
 > 
 > > [!TIP]
-> > Git is 
+> > Line 1 
 > > Line 2
 > 
 > # Links

Src/Modules/MarkdownPS/Public/New-MDAlert.ps1

@@ -78,15 +78,15 @@ function New-MDAlert {
     Begin {
         $output = ''
         $newLine = [System.Environment]::NewLine
+        $admonition = '> [!{0}]' -f $Style.ToUpper()
+        $output += $admonition + $newLine
     }
 
     Process {
         $output += New-MDQuote -Lines $Lines -Level 1 -NoNewLine
     }
 
     End {
-        $admonition = '> [!{0}]' -f $Style.ToUpper()
-        $output = $admonition + $newLine +$output
         if (-not $NoNewLine) {
             $output += $newLine
         }