830797a9c3
Previously we would always take the first image in a post to use as the thumbnail. On media-heavy sites, users may want to manually select a specific image as the topic thumbnail. This commit allows this to be done via a `|thumbnail` attribute in markdown. For example, in this case, bbb would be chosen as the thumbnail: ```   ``` |
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| .. | ||
| addon | ||
| app | ||
| config | ||
| engines/discourse-markdown | ||
| vendor | ||
| ember-cli-build.js | ||
| index.js | ||
| package.json | ||
| yarn.lock | ||