Minor fixes to NL.8
diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md
index 682bd9f98..6efe83a24 100644
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@@ -12963,10 +12963,10 @@ Some conventions capitalize the first letter, some don't.
 
 ##### Note
 
-Try to be consistent in your use of acronyms, lengths of identifiers:
+Try to be consistent in your use of acronyms and lengths of identifiers:
 
     int mtbf {12};
-    int mean_time_between_failor {12};		// make up your mind
+    int mean_time_between_failures {12}; // make up your mind
 
 ##### Enforcement
 

Fix typo, tabs, and grammar.
