Look for boundaries around bad words

[rviscomi]

In GoogleChrome/web.dev#8373 (comment) the bot flagged "OCD" in the source text. However, the offending line is this:

thumbnail: image/jL3OLOhcWUQDnR4XjewLBx4e3PC3/dUBhcdiLqE1OCDUV7ZYm.jpg

https://github.com/GoogleChrome/web.dev/blob/e3b960500b31b8b0f0d143e41ff133a022361e28/src/site/content/en/blog/godaddy/index.md?plain=1#L12

Consider checking for boundaries on either side of the bad words to avoid false positives, ie /\bOCD\b/.