diff --git a/README.md b/README.md
index 98de70c..fa74e67 100644
--- a/README.md
+++ b/README.md
@@ -284,7 +284,7 @@ if message received == .hi:
 - don't forget to add your country flag here after accepted PR. i'll have to hunt it down on your profile if not.
 - make sure to follow PEP8
 
-**about PR**
+**About PR**
 
 first clone the project
 
@@ -298,12 +298,34 @@ cd into the project
 cd honeybot
 ```
 
+create a virtualenv to work with different python \ libs versions
+
+```
+python -m venv venv
+source venv/bin/activate
+```
+
+install the tools needed to make the constraint checks
+
+```
+pip install black isort bandit pre-commit
+pre-commit install
+```
+
 different changes to different files. for example, someone making a weather plugin first he creates a new branch
 
 ```
 git checkout -b "weather-plugin"
 ```
 
+test if all files are well formatted, complying with style and security rules, before send the PR
+
+```
+black --check --verbose --config ./pyproject.toml src/honeybot/plugins/downloaded/weather/main.py
+isort --check-only --settings-path ./pyproject.toml src/honeybot/plugins/downloaded/weather/main.py
+bandit -ll -c ./pyproject.toml -r src/honeybot/plugins/downloaded/weather/main.py 
+```
+
 then he commits
 
 ```
diff --git a/docs/source/How_Tos/contributing.rst b/docs/source/How_Tos/contributing.rst
index 3b56526..d64db2e 100644
--- a/docs/source/How_Tos/contributing.rst
+++ b/docs/source/How_Tos/contributing.rst
@@ -19,12 +19,35 @@ cd into the project
 
    cd honeybot
 
+create a virtualenv to work with different python \ libs versions
+
+.. code-block::
+   
+   python -m venv venv
+   source venv/bin/activate
+
+install the tools needed to make the constraint checks
+
+.. code-block::
+
+   pip install black isort bandit pre-commit
+   pre-commit install
+
 different changes to different files. for example, someone making a weather plugin first he creates a new branch
 
 .. code-block::
 
    git checkout -b "weather-plugin"
 
+test if all files are well formatted, complying with style and security rules, before send the PR
+
+.. code-block::
+
+    black --check --verbose --config ./pyproject.toml src/honeybot/plugins/downloaded/weather/main.py
+    isort --check-only --settings-path ./pyproject.toml src/honeybot/plugins/downloaded/weather/main.py
+    bandit -ll -c ./pyproject.toml -r src/honeybot/plugins/downloaded/weather/main.py     
+
+
 then he commits
 
 .. code-block::
diff --git a/docs/source/How_Tos/documentation.rst b/docs/source/How_Tos/documentation.rst
index 2246713..44023ab 100644
--- a/docs/source/How_Tos/documentation.rst
+++ b/docs/source/How_Tos/documentation.rst
@@ -53,7 +53,8 @@ Your folder structure needs to look as follows:
 Generating docs
 ^^^^^^^^^^^^^^^
 
-Once you’re set up you can test if sphinx works properly in `honeybot/docs/`_ directory, by changing to 'html' folder, opening a terminal and typing **'sphinx-build ../docs/source/ .'**. This will take the *.rst files in `honeybot/docs/source*`_ and ‘make’ them into html in 'html/' folder that contains the **gh-pages** branch. If it shows any warning you’ll have to fix them before committing, otherwise the documentation wont be automatically build once you push your changes to Github.
+Once you’re set up you can test if sphinx works properly in `honeybot/docs/`_ directory, by changing to 'html' folder, opening a terminal and typing **'sphinx-build ../docs/source/ .'**. This will take the *.rst* files in 
+`honeybot/docs/source/`_ and ‘make’ them into html in 'html/' folder that contains the 'gh-pages' branch. If it shows any warning you’ll have to fix them before committing, otherwise the documentation wont be automatically build once you push your changes to Github.
 Next you can 'add' and 'commit' these changes into your fork by typing:
 
 **git add \***
@@ -66,15 +67,15 @@ Finally, you can make a pull request by typing:
 
 And this'll create a PR in the **gh-pages** branch that'll be analysed by someone in project.
 
-Later do you still need to push the master branch too. Because the *.rst files are on this branch and were not go to the previus PR:
+Later do you still need to push the master branch too. Because the *.rst* files are on this branch and were not go to the previus PR:
 
-**git add docs/source/\***
+**git add docs/source \***
 
 **git commit -m "Commit message"**
 
 **git push origin master**
 
-Since I won't provide a full tutorial on how to write rst files here is a useful
+Since I won't provide a full tutorial on how to write *.rst* files here is a useful
 link:
 rst_
 
@@ -86,4 +87,3 @@ rst_
 .. _honeybot/docs/source/How_Tos/: https://github.com/pyhoneybot/honeybot/tree/master/docs/source/How_Tos
 .. _honeybot/docs/source/Plugins/: https://github.com/pyhoneybot/honeybot/tree/master/docs/source/Plugins
 .. _honeybot/docs/: https://github.com/pyhoneybot/honeybot/tree/master/docs
-.. _honeybot/docs/source*: https://github.com/pyhoneybot/honeybot/tree/master/docs/source
\ No newline at end of file
diff --git a/html b/html
new file mode 160000
index 0000000..e340990
--- /dev/null
+++ b/html
@@ -0,0 +1 @@
+Subproject commit e340990205fda43312173090652fc6be0cc7b7fe