Documentation: ktap: Separate first bullet list items

The first bullet list items are shown in htmldocs output as combined
with previous paragraph due to missing blank line separator. Add it.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814012046.21235-3-bagasdotme@gmail.com

Documentation/dev-tools/ktap.rst

@@ -20,6 +20,7 @@ machine-readable, whereas the diagnostic data is unstructured and is there to
 aid human debugging.
 
 KTAP output is built from four different types of lines:
+
 - Version lines
 - Plan lines
 - Test case result lines
@@ -38,6 +39,7 @@ All KTAP-formatted results begin with a "version line" which specifies which
 version of the (K)TAP standard the result is compliant with.
 
 For example:
+
 - "KTAP version 1"
 - "TAP version 13"
 - "TAP version 14"
@@ -276,6 +278,7 @@ Example KTAP output
 This output defines the following hierarchy:
 
 A single test called "main_test", which fails, and has three subtests:
+
 - "example_test_1", which passes, and has one subtest:
 
    - "test_1", which passes, and outputs the diagnostic message "test_1: initializing test_1"