DOC: confusing wording in Dataframe.quantile 'a la'

[peterpanmj]

Problem description

a la is confusing. The same issue I encountered in Series.quantile is in Dataframe.quantile
#21292

pandas/pandas/core/frame.py

Lines 7249 to 7253 in 25e6a21

	def quantile(self, q=0.5, axis=0, numeric_only=True,
	interpolation='linear'):
	"""
	Return values at the given quantile over requested axis, a la
	numpy.percentile.

Expected Output

Output of pd.show_versions()

INSTALLED VERSIONS

commit: None
python: 3.5.2.final.0
python-bits: 64
OS: Windows
OS-release: 10
machine: AMD64
processor: Intel64 Family 6 Model 94 Stepping 3, GenuineIntel
byteorder: little
LC_ALL: None
LANG: None
LOCALE: None.None

pandas: 0.23.4
pytest: 2.9.2
pip: 9.0.1
setuptools: 40.0.0
Cython: 0.28.4
numpy: 1.14.2
scipy: 1.0.0
pyarrow: None
xarray: None
IPython: 5.1.0
sphinx: 1.4.6
patsy: 0.4.1
dateutil: 2.6.1
pytz: 2017.3
blosc: None
bottleneck: 1.1.0
tables: 3.2.2
numexpr: 2.6.4
feather: None
matplotlib: 2.1.1
openpyxl: 2.3.2
xlrd: 1.0.0
xlwt: 1.1.2
xlsxwriter: 0.9.3
lxml: 3.6.4
bs4: 4.5.1
html5lib: None
sqlalchemy: 1.0.13
pymysql: None
psycopg2: None
jinja2: 2.8
s3fs: None
fastparquet: None
pandas_gbq: None
pandas_datareader: None