diff --git a/.travis.yml b/.travis.yml
index b2501aa..4f4f334 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,8 @@ python:
 install:
   - pip install -e ".[dev]"
 script:
-  - py.test --cov . --cov-report xml:coverage.xml
+  - cd docs && make doctest
+  - pytest --cov . --cov-report xml:coverage.xml
 
 env:
   global:
diff --git a/docs/source/_static/.gitkeep b/docs/source/_static/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/docs/source/api.rst b/docs/source/api.rst
new file mode 100644
index 0000000..5bf8d8c
--- /dev/null
+++ b/docs/source/api.rst
@@ -0,0 +1,5 @@
+API reference
+=============
+
+.. automodule:: cryptocom.exchange
+    :members:
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 6207bdd..33135a4 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -13,16 +13,18 @@
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 #
 
+from cryptocom.exchange import VERSION
+
 # -- Project information -----------------------------------------------------
 
 project = 'cryptocom-exchange'
-copyright = '2019, change'
-author = 'change'
+copyright = '2020, goincrypto.com'
+author = 'Yaroslav Rudenok [MortySpace]'
 
 # The short X.Y version
-version = ''
+version = VERSION
 # The full version, including alpha/beta/rc tags
-release = '0.1'
+release = VERSION
 
 
 # -- General configuration ---------------------------------------------------
@@ -79,7 +81,7 @@ pygments_style = None
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = 'alabaster'
+html_theme = 'sphinx_rtd_theme'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
@@ -133,7 +135,7 @@ latex_elements = {
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-    (master_doc, 'cryptocom-exchange.tex', 'unv\\_template Documentation',
+    (master_doc, 'cryptocom-exchange.tex', 'cryptocom-exchange\\_template Documentation',
      'change', 'manual'),
 ]
 
@@ -154,7 +156,7 @@ man_pages = [
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-    (master_doc, 'cryptocom-exchange', 'cryptocom-exchange Documentation',
+    (master_doc, 'cryptocom-exchange', 'cryptocom-exchange Documentati',
      author, 'cryptocom-exchange', 'One line description of project.',
      'Miscellaneous'),
 ]
diff --git a/docs/source/guide.rst b/docs/source/guide.rst
new file mode 100644
index 0000000..2540431
--- /dev/null
+++ b/docs/source/guide.rst
@@ -0,0 +1,2 @@
+User's Guide
+============
diff --git a/docs/source/index.rst b/docs/source/index.rst
index bcbb503..03c39eb 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -2,15 +2,43 @@
    You can adapt this file completely to your liking, but it should at least
    contain the root `toctree` directive.
 
+.. toctree::
+    :hidden:
+    :maxdepth: 3
+    :caption: Contents:
+
+    Home <self>
+    install
+    guide
+    api
+
 Welcome to cryptocom-exchange documentation!
 ============================================
+Get started with "Installation" and then get an overview with the User's guide with helpful examples. Also you can find tests with examples of trading and exchange data usage.
+Full reference you can find in the API section. cryptocom-exchange depends on the aiohttp the documentation for this library can be found at: "link".
 
-.. toctree::
-    :maxdepth: 2
-    :caption: Contents:
+Quick-start
+===========
+
+- python3 -m venv venv (create virutalenv)
+- source venv/bin/activate
+- pip3 install cryptocom-exchange
+
+- create simple file hello_crypto.py with contents
+
+.. testcode::
+
+    import asyncio
+    import cryptocom.exchange as cro
+
+    async def main():
+        exchange = cro.Exchange()
+        candles = [
+            candle async for candle in exchange.get_candles(cro.Symbol.CROUSDT)
+        ]
+        assert len(candles) > 30
 
-.. automodule:: cryptocom.exchange
-    :members:
+    asyncio.run(main())
 
 Indices and tables
 ==================
diff --git a/docs/source/install.rst b/docs/source/install.rst
new file mode 100644
index 0000000..11e4437
--- /dev/null
+++ b/docs/source/install.rst
@@ -0,0 +1,2 @@
+Installation
+============
diff --git a/pytest.ini b/pytest.ini
index 7f3b810..c10b7f3 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,3 +1,3 @@
 [pytest]
-addopts = --doctest-modules
+addopts = --doctest-plus --doctest-rst
 python_paths = tests
diff --git a/setup.py b/setup.py
index a3013bc..d1a7060 100644
--- a/setup.py
+++ b/setup.py
@@ -1,8 +1,18 @@
+from pathlib import Path
 from setuptools import setup, find_packages
 
+
+def get_version():
+    module_file = Path(
+        Path(__file__).parent, 'src',
+        *find_packages('src')[-1].split('.'), '__init__.py'
+    )
+    return module_file.read_text().split("VERSION = '")[1].split("'")[0]
+
+
 setup(
     name='cryptocom-exchange',
-    version='0.1',
+    version=get_version(),
     description="""Provide description""",
     url='https://github.com/goincrypto/cryptocom-exchange',
     author='Yaroslav Rudenok [Morty Space]',
@@ -35,9 +45,11 @@ setup(
             'pytest-asyncio',
             'pytest-cov',
             'pytest-env',
+            'pytest-doctestplus',
             'pytest-pythonpath',
             'autopep8',
             'sphinx',
+            'sphinx_rtd_theme',
             'setuptools',
             'wheel',
             'twine'
diff --git a/src/cryptocom/exchange/__init__.py b/src/cryptocom/exchange/__init__.py
index d452dfa..1c61200 100644
--- a/src/cryptocom/exchange/__init__.py
+++ b/src/cryptocom/exchange/__init__.py
@@ -7,3 +7,5 @@ __all__ = [
     'Exchange', 'Account', 'Candle',
     'ApiError', 'ApiProvider'
 ]
+
+VERSION = '0.1'
diff --git a/src/cryptocom/exchange/base.py b/src/cryptocom/exchange/base.py
index ec9300b..148f0be 100644
--- a/src/cryptocom/exchange/base.py
+++ b/src/cryptocom/exchange/base.py
@@ -35,7 +35,7 @@ class Exchange:
     async def get_ticker(self, symbol: Symbol):
         return (await self.get_tickers()).get(symbol.value)
 
-    async def get_candles(self, symbol: Symbol, period: Period):
+    async def get_candles(self, symbol: Symbol, period: Period = Period.D1):
         """Get k-line data over a specified period."""
         data = await self.api.get(
             'klines', {'symbol': symbol.value, 'period': period.value})