Fix Popover link to dialog docs

[sarayourfriend]

Just a small PR to fix a documentation link from Popover to Dialog

[codesandbox-ci]

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Latest deployment of this branch, based on commit 3cf9da7:

Sandbox	Source
Reakit	Configuration

[github-actions]

Size Change: 0 B

Total Size: 257 kB

ℹ️ View Unchanged

Filename	Size
packages/reakit-playground/dist/reakit-playground.min.js	187 kB
packages/reakit-system-bootstrap/dist/reakit-system-bootstrap.min.js	19.1 kB
packages/reakit-system-palette/dist/reakit-system-palette.min.js	8.85 kB
packages/reakit-system/dist/reakit-system.min.js	2.45 kB
packages/reakit-utils/dist/reakit-utils.min.js	3.46 kB
packages/reakit/dist/reakit.min.js	35.9 kB

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[netlify]

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[codecov]

Codecov Report

Merging #928 (3cf9da7) into master (83e4825) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #928   +/-   ##
=======================================
  Coverage   94.87%   94.87%           
=======================================
  Files         231      231           
  Lines        3510     3510           
  Branches      950      950           
=======================================
  Hits         3330     3330           
  Misses        179      179           
  Partials        1        1           

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[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.