fix announcements link (#90)

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* Update announcements.md

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* Apply suggestions from code review

Co-authored-by: Maciej Kula <[email protected]>

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Co-authored-by: Dera Okeke <[email protected]>
Co-authored-by: Maciej Kula <[email protected]>

Author: 3 people

sidebars.js

@@ -34,7 +34,7 @@ const sidebars = {
         },
         {
           type: "doc",
-          id: "resources/bittensor-rel-notes",
+          id: "learn/announcements",
           label: "Announcements",
         },
       ]