docs: Fix typo in v0.18 release notes
docs: Fix typo in v0.18 release notes


fedelibre/hugo,MarkDBlackwell/hugo,gohugoio/hugo,fedelibre/hugo,anthonyfok/hugo,anthonyfok/hugo,tubo028/hugo,mdhender/hugo,digitalcraftsman/hugo,mitchchn/hugo,fedelibre/hugo,fedelibre/hugo,mitchchn/hugo,mdhender/hugo,tubo028/hugo,mdhender/hugo,mdhender/hugo,MarkDBlackwell/hugo,anthonyfok/hugo,gohugoio/hugo,gohugoio/hugo,digitalcraftsman/hugo