diff --git a/.gitignore b/.gitignore
index f61cfd6..ffbf928 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 .env
 vk_config.v2.json
 output/
+tmp*/
 # build artifacts
 
 .eggs/
diff --git a/Pipfile b/Pipfile
index 216d572..e3e4d19 100644
--- a/Pipfile
+++ b/Pipfile
@@ -26,3 +26,6 @@ python-dotenv = "*"
 
 [requires]
 python_version = "3.9"
+
+[pipenv]
+allow_prereleases = true
diff --git a/README.md b/README.md
index c195cca..9289f63 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,13 @@
 # vk-url-scraper
 Python library to scrape data, and especially media links like videos and photos, from vk.com URLs.
 
+
 [![PyPI version](https://badge.fury.io/py/vk-url-scraper.svg)](https://badge.fury.io/py/vk-url-scraper)
 [![PyPI download month](https://img.shields.io/pypi/dm/vk-url-scraper.svg)](https://pypi.python.org/pypi/vk-url-scraper/)
+[![Documentation Status](https://readthedocs.org/projects/vk-url-scraper/badge/?version=latest)](https://vk-url-scraper.readthedocs.io/en/latest/?badge=latest)
 
-You can use it via the [command line](#command-line-usage) or as a [python library](#python-library-usage).
+
+You can use it via the [command line](#command-line-usage) or as a [python library](#python-library-usage), check the **[documentation](https://vk-url-scraper.readthedocs.io/en/latest/)**.
 
 ## Installation
 You can install the most recent release from [pypi](https://pypi.org/project/vk-url-scraper/) via `pip install vk-url-scraper`.
@@ -25,6 +28,7 @@ vk_url_scraper -u "username here" -p "password here" --urls https://vk.com/wall1
 
 # you can pass a token as well to avoid always authenticating 
 # and possibly getting captch prompts
+# you can fetch the token from the bk_config.v2.json file generated under by searching for "access_token"
 vk_url_scraper -u "username" -p "password" -t "vktoken goes here" --urls https://vk.com/wall12345_6789
 
 # save the JSON output into a file
@@ -96,6 +100,7 @@ To test the command line interface available in [__main__.py](__vk_url_scraper/_
 2. run `./scripts/release.sh` to create a tag and push, alternatively
    1. `git tag vx.y.z` to tag version
    2. `git push origin vx.y.z` -> this will trigger workflow and put project on [pypi](https://pypi.org/project/vk-url-scraper/)
+3. go to https://readthedocs.org/ to deploy new docs version (if webhook is not setup)
 
 ### Fixing a failed release
 
diff --git a/tests/scraper_test.py b/tests/scraper_test.py
index 2f31b7b..0d53799 100644
--- a/tests/scraper_test.py
+++ b/tests/scraper_test.py
@@ -14,6 +14,18 @@ def test_login_fail():
         VkScraper("invalid", "combination")
 
 
+def test_login_custom_file():
+    session_filename = "test-session.json"
+    VkScraper(
+        os.environ["VK_USERNAME"],
+        os.environ["VK_PASSWORD"],
+        os.environ.get("VK_TOKEN"),
+        session_file=session_filename,
+    )
+    assert os.path.isfile(session_filename)
+    os.unlink(session_filename)
+
+
 def test_login_success():
     global vks
     vks = VkScraper(
diff --git a/vk_url_scraper/scraper.py b/vk_url_scraper/scraper.py
index ebda11f..836a3ae 100644
--- a/vk_url_scraper/scraper.py
+++ b/vk_url_scraper/scraper.py
@@ -40,7 +40,12 @@ class VkScraper:
     VIDEO_PATTERN = re.compile(r"(video.{0,1}\d+_\d+)")
 
     def __init__(
-        self, username: str, password: str, token: str = None, captcha_handler=captcha_handler
+        self,
+        username: str,
+        password: str,
+        token: str = None,
+        session_file="vk_config.v2.json",
+        captcha_handler=captcha_handler,
     ) -> None:
         """Initializes the scraper.
 
@@ -55,9 +60,17 @@ class VkScraper:
             Matching password on vk.com
         token : str
             Access token received after authenticating, can be found in the vl_config.v2.json file
+        session_file : str
+            File name where the VK session is saved so future logins are easier
+        captcha_handler : func
+            Function that can receive a vk_api captcha instance and help the user solve it, default is a complete CLI handler
         """
         self.session = vk_api.VkApi(
-            username, password, token=token, captcha_handler=captcha_handler
+            username,
+            password,
+            token=token,
+            config_filename=session_file,
+            captcha_handler=captcha_handler,
         )
         if token is None or len(token) == 0:
             self.session.auth(token_only=True)