[MINOR][DOCS] Fix the examples of createDataFrame

### What changes were proposed in this pull request?
Fix the examples of createDataFrame

`collect` -> `show`

### Why are the changes needed?
existing examples generate different outputs

### Does this PR introduce _any_ user-facing change?
doc only changes

### How was this patch tested?
manually test in `bin/pyspark`

### Was this patch authored or co-authored using generative AI tooling?
no

Closes #49475 from zhengruifeng/py_doc_create_df.

Authored-by: Ruifeng Zheng <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>

Author: zhengruifeng

python/pyspark/sql/session.py

@@ -1467,7 +1467,9 @@ def createDataFrame(  # type: ignore[misc]
         +-----+---+
         |Alice|  1|
         +-----+---+
-        >>> spark.createDataFrame(pandas.DataFrame([[1, 2]])).collect()  # doctest: +SKIP
+
+        >>> pdf = pandas.DataFrame([[1, 2]])  # doctest: +SKIP
+        >>> spark.createDataFrame(pdf).show()  # doctest: +SKIP
         +---+---+
         |  0|  1|
         +---+---+
@@ -1482,8 +1484,9 @@ def createDataFrame(  # type: ignore[misc]
         +-----+---+
         |Alice|  1|
         +-----+---+
+
         >>> table = pyarrow.table({'0': [1], '1': [2]})  # doctest: +SKIP
-        >>> spark.createDataFrame(table).collect()  # doctest: +SKIP
+        >>> spark.createDataFrame(table).show()  # doctest: +SKIP
         +---+---+
         |  0|  1|
         +---+---+