Fix code fences
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@@ -46,13 +46,13 @@ In a (Debian-based) Dockerfile:
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RUN apt-get update &&
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apt-get install -y libgirepository1.0-dev libpoppler-glib-dev &&
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rm -rf /var/lib/apt/lists/*
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````
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```
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Then, in your `Gemfile`:
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```ruby
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gem "poppler"
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````
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```
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## Use it in your application
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