Update CONTRIBUTING.md (microsoft#3009)

Replace `�` with 👍 and 👎 reaction emojis to ensure it is clear which reactions to use when up/downvoting and issue.
GazimbeIsaac · Oct 26, 2018 · fc3bdc9 · fc3bdc9
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commit fc3bdc9
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -5,9 +5,9 @@ First, please do a search in [open issues](https://github.com/Microsoft/azuredat
 
 If you find your issue already exists, make relevant comments and add your [reaction](https://github.com/blog/2119-add-reactions-to-pull-requests-issues-and-comments). Use a reaction in place of a "+1" comment.
 
-� - upvote
+:+1: - upvote
 
-� - downvote
+:-1: - downvote
 
 If you cannot find an existing issue that describes your bug or feature, submit an issue using the guidelines below.