fix: documentation fixes

Author: scanny

docs/api/enum/WdLineSpacing.rst

@@ -10,7 +10,7 @@ Example::
     from docx.enum.text import WD_LINE_SPACING
 
     paragraph = document.add_paragraph()
-    paragraph.line_spacing_rule = WD_LINE_SPACING.EXACTLY
+    paragraph.paragraph_format.line_spacing_rule = WD_LINE_SPACING.EXACTLY
 
 ----
 

docs/dev/analysis/features/shapes/picture.rst

@@ -12,7 +12,7 @@ Candidate protocol
 ::
 
     >>> run = paragraph.add_run()
-    >>> inline_shape = run.add_inline_picture(file_like_image, MIME_type=None)
+    >>> inline_shape = run.add_picture(file_like_image, MIME_type=None)
     >>> inline_shape.width = width
     >>> inline_shape.height = height