Mention the clamp on boundary.circle.radius

[macneice]

👋 I did some awesome work for the Pelias project and would love for everyone to have a look at it and provide feedback.

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Here's the reason for this change :

• Mentions the boundary.circle.radius limit implemented in fix clamp boundary.circle.radius for reverse queries api#1618

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Here's what actually got changed :

• The example radius was updated from 35km to 5km and a mention of the 5km limit was added.

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Here's how others can test the changes 👀

[arnesetzer]

After losing a few hours to figure out what went wrong, I really look forward to get this tiny, but very useful, bit of information get merged.

[macneice]

After losing a few hours to figure out what went wrong, I really look forward to get this tiny, but very useful, bit of information get merged.

I lost time on this too and was hoping to save future devs from the same.