make default italic to make it a little to tell what it means

Tyler Whitney · Tyler Whitney · commit cff333327766 · 2020-10-07T16:28:29.000-07:00
diff --git a/docs/linux/connectionmanager-reference.md b/docs/linux/connectionmanager-reference.md
@@ -35,7 +35,7 @@ The functionality of ConnectionManager.exe is also available in Visual Studio. T
 
   Removes a connection. If no arguments are specified, you're prompted to specify which connection to remove.
   
-- **`modify`** \[default \| *connection_id* \| *user\@host* \[**`--port`** *port*]] \[**`--property`** *key=value*]
+- **`modify`** \[*default* \| *connection_id* \| *user\@host* \[**`--port`** *port*]] \[**`--property`** *key=value*]
 
   Defines or modifies a property on a connection.\
   If *value* is empty, then the property *key* is deleted.\
