Fix linting errors in award_emoji.md

Fix linting errors in https://docs.gitlab.com/ee/api/award_emoji.html

Related: #284446 (closed)

177:41  error  Avoid using future tense: "you'll have". Use present tense instead.  gitlab.FutureTense
344:41  error  Avoid using future tense: "you'll have". Use present tense instead.  gitlab.FutureTense

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