[MINOR][DOCS] Fix some links for python api doc

Author: yaooqinn

python/pyspark/sql/readwriter.py

@@ -253,8 +253,8 @@ def json(self, path, schema=None, primitivesAsString=None, prefersDecimal=None,
         :param recursiveFileLookup: recursively scan a directory for files. Using this option
                                     disables `partition discovery`_.
 
-        .. _partition discovery: /sql-data-sources-parquet.html#partition-discovery
-        .. _datetime pattern: https://spark.apache.org/docs/latest/sql-ref-datetime-pattern.html
+        .. _partition discovery: /docs/latest/sql-data-sources-parquet.html#partition-discovery
+        .. _datetime pattern: /docs/latest/sql-ref-datetime-pattern.html
 
         >>> df1 = spark.read.json('python/test_support/sql/people.json')
         >>> df1.dtypes

python/pyspark/sql/streaming.py

@@ -489,8 +489,8 @@ def json(self, path, schema=None, primitivesAsString=None, prefersDecimal=None,
         :param recursiveFileLookup: recursively scan a directory for files. Using this option
                                     disables `partition discovery`_.
 
-        .. _partition discovery: /sql-data-sources-parquet.html#partition-discovery
-        .. _datetime pattern: https://spark.apache.org/docs/latest/sql-ref-datetime-pattern.html
+        .. _partition discovery: /docs/latest/sql-data-sources-parquet.html#partition-discovery
+        .. _datetime pattern: /docs/latest/sql-ref-datetime-pattern.html
 
         >>> json_sdf = spark.readStream.json(tempfile.mkdtemp(), schema = sdf_schema)
         >>> json_sdf.isStreaming