[x/blog] blog/content/go-maps-in-action: clean up ambiguous final paragraph
[x/blog] blog/content/go-maps-in-action: clean up ambiguous final paragraph

Rewrite final paragraph for clarity. The grammar was ambiguous
and confusing.

Break up the huge paragraph into multiple lines. I left the rest of the document untouched to localize the changes.

Fixes golang/go#25647.

Change-Id: I8f3b54c3429e60658437731c357e7e7feb8937f3
Reviewed-on: https://go-review.googlesource.com/115395
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>
X-Blog-Commit: fcbcd37d6473d287176aecd8a341f1c69d0f19b6

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