Fix typo

Signed-off-by: Titus <[email protected]>

readme.md

@@ -260,7 +260,7 @@ versions of Node.js.
 When we cut a new major release, we drop support for unmaintained versions of
 Node.
 This means we try to keep the current release line, `estree-util-build-jsx@^3`,
-compatible with Node.js 166.
+compatible with Node.js 16.
 
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