documentation build warning fixes

docs/topics/commands.rst

@@ -21,7 +21,7 @@ in standard locations:
 
 1. ``/etc/scrapy.cfg`` or ``c:\scrapy\scrapy.cfg`` (system-wide),
 2. ``~/.config/scrapy.cfg`` (``$XDG_CONFIG_HOME``) and ``~/.scrapy.cfg`` (``$HOME``)
-  for global (user-wide) settings, and
+   for global (user-wide) settings, and
 3. ``scrapy.cfg`` inside a scrapy project's root (see next section).
 
 Settings from these files are merged in the listed order of preference:

docs/topics/items.rst

@@ -22,7 +22,7 @@ Various Scrapy components use extra information provided by Items:
 exporters look at declared fields to figure out columns to export,
 serialization can be customized using Item fields metadata, :mod:`trackref`
 tracks Item instances to help finding memory leaks 
-(see :ref:`topics-leaks-trackrefs`_), etc.
+(see :ref:`topics-leaks-trackrefs`), etc.
 
 .. _dictionary-like: https://docs.python.org/2/library/stdtypes.html#dict