runtime: Fix typos in various files

closes: #12836

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Viktor Szépe <viktor@szepe.net>
diff --git a/runtime/syntax/flexwiki.vim b/runtime/syntax/flexwiki.vim
index 6b15ab2..3b5f7ff 100644
--- a/runtime/syntax/flexwiki.vim
+++ b/runtime/syntax/flexwiki.vim
@@ -67,10 +67,10 @@
 " Aggregate all the regular text highlighting into flexwikiText
 syntax cluster flexwikiText contains=flexwikiItalic,flexwikiBold,flexwikiCode,flexwikiDeEmphasis,flexwikiDelText,flexwikiInsText,flexwikiSuperScript,flexwikiSubScript,flexwikiCitation,flexwikiLink,flexwikiWord,flexwikiEmoticons
 
-" single-line WikiPropertys
+" single-line WikiProperties
 syntax match flexwikiSingleLineProperty /^:\?[A-Z_][_a-zA-Z0-9]\+:/
 
-" TODO: multi-line WikiPropertys
+" TODO: multi-line WikiProperties
 
 " Header levels, 1-6
 syntax match flexwikiH1             /^!.*$/