diff --git a/tutos/computer.txt b/tutos/computer.txt
index 7d6c303..c4b3071 100644
--- a/tutos/computer.txt
+++ b/tutos/computer.txt
@@ -12,14 +12,19 @@
 		Type=Application
 	**( cd /usr/share/applications && chmod 644 <name>.desktop )** maybe change permissions
 
-**firefox extension source code**
+**firefox extension source code :**
 	**right click on install** and select "copy link"
 	**curl -L <link> > /tmp/myextension.xpi** download the extension with curl inside a tmp file
 	**unzip /tmp/myextension.xpi -d /tmp/myextension** unzip the content
 	enjoy reading it ;)
 
-**enable accents on ubuntu**
+**enable accents on ubuntu :**
 	**compose key = right alt** change in keyboard > layout > compose key
 	**r-alt ' e** é
 	**r-alt ` e** è
 
+**connect to planet hoster with ssh :**
+	ssh hugugtzx@world-370.fr.planethoster.net -p 5022
+	**to enable vi :** `export TERM=xterm`
+	**locked files on nextcloud :** https://help.nextcloud.com/t/file-is-locked-how-to-unlock/1883
+
diff --git a/tutos/git.txt b/tutos/git.txt
index ca3acd9..03b6c56 100644
--- a/tutos/git.txt
+++ b/tutos/git.txt
@@ -17,6 +17,7 @@
 **git branch** lists all a git project's branches
 **git branch branch_name** creates a new branch
 **git checkout branch_name** to switch from one branch to another
+**git checkout -b branch-name** create and switch to new branch
 **git log** shows a list of all previous commits
 **git log --summary** show more informations
 **git merge branch_name** join file changes from branch_name into current branch
diff --git a/tutos/sites.txt b/tutos/sites.txt
index d10fa69..d4759de 100644
--- a/tutos/sites.txt
+++ b/tutos/sites.txt
@@ -1,3 +1,9 @@
+**axiom.ai :** create bots to automat tasks on internet                   
+**wolframalpha.com :** answer complex questions in math, science, and life
+**tinywow.com :** free tools for tasks online                             
+**opensourcealternative.to :** open source alternatives                   
+**jotform.com :** 10 000 forms templates for your website 
+
 **create a live usb with partition** https://theartofmachinery.com/2016/04/21/partitioned_live_usb.html
 **tools** www.preparetocode.io
 **design** http://www.dailyui.co/