docs: update help file

Author: franco-ruggeri

doc/codecompanion-spinner.txt

@@ -18,8 +18,6 @@ Inline spinner for CodeCompanion
 This plugin adds an animated spinner in the CodeCompanion chat while AI is
 processing a request, giving clear feedback to the user.
 
-
-
 Note the _“Processing…”_ virtual text while AI is generating the
 response.
 
@@ -67,7 +65,7 @@ Thanks yuhua99 <https://github.com/yuhua99> for providing the spinner logic
 ==============================================================================
 5. Links                                         *codecompanion-spinner-links*
 
-1. **: assets/demo.gif
+1. *demo*: assets/demo.gif
 
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