Add newlines for correct markdown

See
https://github.com/markdownlint/markdownlint/blob/main/docs/RULES.md#md031---fenced-code-blocks-should-be-surrounded-by-blank-lines

Author: stefanhaller

docs/Config.md

@@ -649,32 +649,39 @@ os:
 ```
 
 ## Custom Command for Opening a Link
+
 ```yaml
 os:
   openLink: 'bash -C /path/to/your/shell-script.sh {{link}}'
 ```
+
 Specify the external command to invoke when opening URL links (i.e. creating MR/PR in GitLab, BitBucket or GitHub). `{{link}}` will be replaced by the URL to be opened. A simple shell script can be used to further mangle the passed URL.
 
 ## Custom Command for Copying to and Pasting from Clipboard
+
 ```yaml
 os:
   copyToClipboardCmd: ''
 ```
+
 Specify an external command to invoke when copying to clipboard is requested. `{{text}` will be replaced by text to be copied. Default is to copy to system clipboard.
 
 If you are working on a terminal that supports OSC52, the following command will let you take advantage of it:
+
 ```yaml
 os:
   copyToClipboardCmd: printf "\033]52;c;$(printf {{text}} | base64 -w 0)\a" > /dev/tty
 ```
 
 For tmux you need to wrap it with the [tmux escape sequence](https://github.com/tmux/tmux/wiki/FAQ#what-is-the-passthrough-escape-sequence-and-how-do-i-use-it), and enable passthrough in tmux config with `set -g allow-passthrough on`:
+
 ```yaml
 os:
   copyToClipboardCmd: printf "\033Ptmux;\033\033]52;c;$(printf {{text}} | base64 -w 0)\a\033\\" > /dev/tty
 ```
 
 For the best of both worlds, we can let the command determine if we are running in a tmux session and send the correct sequence:
+
 ```yaml
 os:
   copyToClipboardCmd: >
@@ -686,10 +693,12 @@ os:
 ```
 
 A custom command for reading from the clipboard can be set using
+
 ```yaml
 os:
   readFromClipboardCmd: ''
 ```
+
 It is used, for example, when pasting a commit message into the commit message panel. The command is supposed to output the clipboard content to stdout.
 
 ## Configuring File Editing
@@ -960,6 +969,7 @@ In situations where certain naming pattern is used for branches, this can be use
 Example:
 
 Some branches:
+
 - jsmith/AB-123
 - cwilson/AB-125