docs: fix checklinks (#3532)

Author: eddyxu

docs/introduction/read_and_write.rst

@@ -70,7 +70,7 @@ For example, to delete Bob's row from the dataset above, one could use:
 
 .. note::
 
-  :doc:`Lance Format is immutable <./format>`. Each write operation creates a new version of the dataset,
+  :doc:`Lance Format is immutable <../format>`. Each write operation creates a new version of the dataset,
   so users must reopen the dataset to see the changes. Likewise, rows are removed by marking
   them as deleted in a separate deletion index, rather than rewriting the files. This approach
   is faster and avoids invalidating any indices that reference the files, ensuring that subsequent

python/python/lance/dataset.py

@@ -333,7 +333,7 @@ def scanner(
             All columns are fetched if None or unspecified.
         filter: pa.compute.Expression or str
             Expression or str that is a valid SQL where clause. See
-            `Lance filter pushdown <https://lancedb.github.io/lance/read_and_write.html#filter-push-down>`_
+            `Lance filter pushdown <https://lancedb.github.io/lance/introduction/read_and_write.html#filter-push-down>`_
             for valid SQL expressions.
         limit: int, default None
             Fetch up to this many rows. All rows if None or unspecified.
@@ -554,7 +554,7 @@ def to_table(
             All columns are fetched if None or unspecified.
         filter : pa.compute.Expression or str
             Expression or str that is a valid SQL where clause. See
-            `Lance filter pushdown <https://lancedb.github.io/lance/read_and_write.html#filter-push-down>`_
+            `Lance filter pushdown <https://lancedb.github.io/lance/introduction/read_and_write.html#filter-push-down>`_
             for valid SQL expressions.
         limit: int, default None
             Fetch up to this many rows. All rows if None or unspecified.