Documentation: multiple .rst files: Fix grammar and more consistent formatting

sphinx.rst:
- Remove unnecessary newline
- Fix grammar s/on/in/
- Fix grammar s/check/checks/
- Capitalize heading "The C domain"

changes.rst:
- Remove colon after "pahole" to be consistent with other entries

howto.rst:
- Fix grammar s/you will/will you/
- Hyphenate "real-world problems"

Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240205000117.3285-1-thorsten.blum@toblux.com

Documentation/doc-guide/sphinx.rst

@@ -63,8 +63,7 @@ Image output
 ------------
 
 The kernel documentation build system contains an extension that
-handles images on both GraphViz and SVG formats (see
-:ref:`sphinx_kfigure`).
+handles images in both GraphViz and SVG formats (see :ref:`sphinx_kfigure`).
 
 For it to work, you need to install both GraphViz and ImageMagick
 packages. If those packages are not installed, the build system will
@@ -108,7 +107,7 @@ further info.
 Checking for Sphinx dependencies
 --------------------------------
 
-There's a script that automatically check for Sphinx dependencies. If it can
+There's a script that automatically checks for Sphinx dependencies. If it can
 recognize your distribution, it will also give a hint about the install
 command line options for your distro::
 
@@ -283,7 +282,7 @@ Here are some specific guidelines for the kernel documentation:
   from highlighting. For a short snippet of code embedded in the text, use \`\`.
 
 
-the C domain
+The C domain
 ------------
 
 The **Sphinx C Domain** (name c) is suited for documentation of C API. E.g. a

Documentation/process/changes.rst

@@ -144,8 +144,8 @@ Bison
 Since Linux 4.16, the build system generates parsers
 during build.  This requires bison 2.0 or later.
 
-pahole:
--------
+pahole
+------
 
 Since Linux 5.2, if CONFIG_DEBUG_INFO_BTF is selected, the build system
 generates BTF (BPF Type Format) from DWARF in vmlinux, a bit later from kernel

Documentation/process/howto.rst

@@ -351,8 +351,8 @@ Managing bug reports
 --------------------
 
 One of the best ways to put into practice your hacking skills is by fixing
-bugs reported by other people. Not only you will help to make the kernel
-more stable, but you'll also learn to fix real world problems and you will
+bugs reported by other people. Not only will you help to make the kernel
+more stable, but you'll also learn to fix real-world problems and you will
 improve your skills, and other developers will be aware of your presence.
 Fixing bugs is one of the best ways to get merits among other developers,
 because not many people like wasting time fixing other people's bugs.