[docs] Various manpage fixes

Authored by: leoheitmannruiz

README.md

@@ -158,6 +158,7 @@ ## UPDATE
 You may also use `--update-to <repository>` (`<owner>/<repository>`) to update to a channel on a completely different repository. Be careful with what repository you are updating to though, there is no verification done for binaries from different repositories.
 
 Example usage:
+
 * `yt-dlp --update-to master` switch to the `master` channel and update to its latest release
 * `yt-dlp --update-to stable@2023.07.06` upgrade/downgrade to release to `stable` channel tag `2023.07.06`
 * `yt-dlp --update-to 2023.10.07` upgrade/downgrade to tag `2023.10.07` if it exists on the current channel
@@ -1892,6 +1893,7 @@ ## Installing Plugins
 
 
 `.zip`, `.egg` and `.whl` archives containing a `yt_dlp_plugins` namespace folder in their root are also supported as plugin packages.
+
 * e.g. `${XDG_CONFIG_HOME}/yt-dlp/plugins/mypluginpkg.zip` where `mypluginpkg.zip` contains `yt_dlp_plugins/<type>/myplugin.py`
 
 Run yt-dlp with `--verbose` to check if the plugin has been loaded.

devscripts/prepare_manpage.py

@@ -43,6 +43,27 @@ def filter_excluded_sections(readme):
         '', readme)
 
 
+def _convert_code_blocks(readme):
+    current_code_block = None
+
+    for line in readme.splitlines(True):
+        if current_code_block:
+            if line == current_code_block:
+                current_code_block = None
+                yield '\n'
+            else:
+                yield f'    {line}'
+        elif line.startswith('```'):
+            current_code_block = line.count('`') * '`' + '\n'
+            yield '\n'
+        else:
+            yield line
+
+
+def convert_code_blocks(readme):
+    return ''.join(_convert_code_blocks(readme))
+
+
 def move_sections(readme):
     MOVE_TAG_TEMPLATE = '<!-- MANPAGE: MOVE "%s" SECTION HERE -->'
     sections = re.findall(r'(?m)^%s$' % (
@@ -65,8 +86,10 @@ def move_sections(readme):
 
 def filter_options(readme):
     section = re.search(r'(?sm)^# USAGE AND OPTIONS\n.+?(?=^# )', readme).group(0)
+    section_new = section.replace('*', R'\*')
+
     options = '# OPTIONS\n'
-    for line in section.split('\n')[1:]:
+    for line in section_new.split('\n')[1:]:
         mobj = re.fullmatch(r'''(?x)
                 \s{4}(?P<opt>-(?:,\s|[^\s])+)
                 (?:\s(?P<meta>(?:[^\s]|\s(?!\s))+))?
@@ -86,7 +109,7 @@ def filter_options(readme):
     return readme.replace(section, options, 1)
 
 
-TRANSFORM = compose_functions(filter_excluded_sections, move_sections, filter_options)
+TRANSFORM = compose_functions(filter_excluded_sections, convert_code_blocks, move_sections, filter_options)
 
 
 def main():