[fix] various issues in the documentation

Closes: https://github.com/searxng/searxng/issues/4370
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/engines/gitea.py

@@ -30,7 +30,7 @@ Optional settings are:
     shortcut: forgejo
 
 If you would like to use additional instances, just configure new engines in the
-:ref:`settings <settings engine>` and set the ``base_url``.
+:ref:`settings <settings engines>` and set the ``base_url``.
 
 
 Implementation

searx/engines/json_engine.py

@@ -54,7 +54,7 @@ Example
 =======
 
 Here is a simple example of a JSON engine configure in the :ref:`settings
-engine` section, further read :ref:`engines-dev`.
+engines` section, further read :ref:`engines-dev`.
 
 .. code:: yaml
 
@@ -384,7 +384,7 @@ def extract_response_info(result):
 
 
 def response(resp):
-    '''Scrap *results* from the response (see :ref:`engine results`).'''
+    '''Scrap *results* from the response (see :ref:`result types`).'''
     results = []
 
     if no_result_for_http_status and resp.status_code in no_result_for_http_status:

searx/engines/lemmy.py

@@ -16,7 +16,7 @@ The engine has the following additional settings:
 - :py:obj:`lemmy_type`
 
 This implementation is used by different lemmy engines in the :ref:`settings.yml
-<settings engine>`:
+<settings engines>`:
 
 .. code:: yaml
 

searx/engines/qwant.py

@@ -17,7 +17,7 @@ The engine has the following additional settings:
 - :py:obj:`qwant_categ`
 
 This implementation is used by different qwant engines in the :ref:`settings.yml
-<settings engine>`:
+<settings engines>`:
 
 .. code:: yaml
 

searx/engines/seekr.py

@@ -13,7 +13,7 @@ The engine has the following additional settings:
 - :py:obj:`api_key`
 
 This implementation is used by seekr engines in the :ref:`settings.yml
-<settings engine>`:
+<settings engines>`:
 
 .. code:: yaml
 

searx/engines/xpath.py

@@ -52,7 +52,7 @@ Example
 =======
 
 Here is a simple example of a XPath engine configured in the :ref:`settings
-engine` section, further read :ref:`engines-dev`.
+engines` section, further read :ref:`engines-dev`.
 
 .. code:: yaml
 

searx/utils.py

@@ -473,7 +473,7 @@ def ecma_unescape(string: str) -> str:
 def remove_pua_from_str(string):
     """Removes unicode's "PRIVATE USE CHARACTER"s (PUA_) from a string.
 
-    _PUA: https://en.wikipedia.org/wiki/Private_Use_Areas
+    .. _PUA: https://en.wikipedia.org/wiki/Private_Use_Areas
     """
     pua_ranges = ((0xE000, 0xF8FF), (0xF0000, 0xFFFFD), (0x100000, 0x10FFFD))
     s = []