Minor doc changes Raku#3871

xt/check-signatures.t

@@ -25,22 +25,22 @@ the signature does not automatically cause the test to fail: some differences in
 signature (such as different names for positional parameters) represent
 different implementation choices rather than an error in the docs.
 
-NOTE: when you specify a rakudo source directory using the RAKUDO_SRC environment
+I<NOTE>: when you specify a rakudo source directory using the RAKUDO_SRC
+environment
 variable, this script will attempt to test a specific version by using git checkout
 to switch that checkout to a specific version during the test, and run
 "git checkout -" at the end to reset the state.
 
-NOTE: This test uses introspection from the running copy of rakudo to find
+I<NOTE>: This test uses introspection from the running copy of Rakudo to find
 information in the source code. If you are running a different version of raku
 then the RAKUDO_SRC directory, it may be unable to find certain method definitions.
 
 To ensure that implementation details don't cause failing tests, we check only
 for certain discrepancies that are guaranteed to indicate a
 substantive/non-implementation detail mismatch between Rakudo and the docs.
 
-Currently, we only test for one category of discrepancies:
-
-=item Methods that are defined with a specific invocant in Rakudo but not in the
+Currently, we only test for one category of discrepancies: Methods that are
+defined with a specific invocant in Rakudo but not in the
 docs (this helpfully also catches the situation where a documentation signature
 was I<intended> to have an invocant, but where someone forgot to end the
 invocant with a C<:>)