[sphinx] Fix path to source (#2422)

This file was moved in
44f0065.

Also comment some formatting change in git blame ignore list.

Closes #2398

Co-authored-by: Pierre Sassoulas <[email protected]>

Author: jacobtylerwalls

.git-blame-ignore-revs

@@ -1 +1,6 @@
+# Initial formatting of astroid
 add5f7b8eba427de9d39caae864bbc6dc37ef980
+# Apply black on doc/conf.py
+2dd9027054db541871713ef1cb1ae89513d05555
+# Black's 2024 style
+396f01a15d1cb0351b33654acdeedde64f537a0c

doc/conf.py

@@ -9,7 +9,7 @@
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-sys.path.insert(0, os.path.abspath("../../"))
+sys.path.insert(0, os.path.abspath(".."))
 
 # -- General configuration -----------------------------------------------------