diff --git a/README.md b/README.md
index 2be7b5a..57b4d3e 100644
--- a/README.md
+++ b/README.md
@@ -13,13 +13,58 @@ Search in your package manager, otherwise use ``pip install --upgrade``
  - python-magic
  - requests-toolbelt
 
+## Configuration
+
+Edit peertube_secret and youtube_secret.json with your credentials.
+
+### Peertube
+Set your credentials, peertube server URL.  
+You can set ``OAUTHLIB_INSECURE_TRANSPORT`` to 1 if you do not use https (not recommended)
+
+### Youtube
+Youtube uses combination of oauth and API access to identify.
+
+**Credentials**
+The first time you connect, prismedia will open your browser to as you to authenticate to
+Youtube and allow the app to use your Youtube channel.  
+**It is here you choose which channel you will upload to**.  
+Once authenticated, the token is stored inside the file ``.youtube_credentials.json``.  
+Prismedia will try to use this file at each launch, and re-ask for authentication if it does not exist.
+
+**Oauth**:  
+The default youtube_secret.json should allow you to upload some videos.  
+If you plan an larger usage, please consider creating your own youtube_secret file:
+
+- Go to the [Google console](https://console.developers.google.com/).
+- Create project.
+- Side menu: APIs & auth -> APIs
+- Top menu: Enabled API(s): Enable all Youtube APIs.
+- Side menu: APIs & auth -> Credentials.
+- Create a Client ID: Add credentials -> OAuth 2.0 Client ID -> Other -> Name: prismedia1 -> Create -> OK
+- Download JSON: Under the section "OAuth 2.0 client IDs". Save the file to your local system.
+- Save this JSON as your youtube_secret.json file.
+
 ## How To
 Currently in heavy development
 
-Support only mp4 for cross compatibily between Youtube and Peertube
+Support only mp4 for cross compatibility between Youtube and Peertube
+
+Simply upload a video:
+
+```
+./prismedia_upload.py --file="yourvideo.mp4"
+``` 
+
+Specify description and tags:
+
+``` 
+./prismedia_upload.py --file="yourvideo.mp4" -d "My supa description" -t "tag1,tag2,foo"
+```
+
+Use --help to get all available options:
 
 ```
-./prismedia_upload.py -h
+./prismedia_upload.py --help
 prismedia_upload - tool to upload videos to Peertube and Youtube
 
 Usage:
@@ -31,7 +76,7 @@ Options:
   --name=NAME  Name of the video to upload. [default: video filename]
   -d, --description=STRING  Description of the video. [default: default description]
   -t, --tags=STRING  Tags for the video. comma separated
-  -c, --category=STRING  Category for the videos, see below. [ default: Films]
+  -c, --category=STRING  Category for the videos, see below. [default: Films]
   --cca  License should be CreativeCommon Attribution (affects Youtube upload only)
   -p, --privacy=STRING Choose between public, unlisted or private. [default: private]
   --disable-comments  Disable comments (Peertube only) [default: comments are enabled]