diff --git a/best_practices.md b/best_practices.md
index 91ca870bd5f3e722ad31083ca18c0647ade7272a..bafee3744301cfe7ccc85b7288adc50c006581b1 100644
--- a/best_practices.md
+++ b/best_practices.md
@@ -12,27 +12,20 @@
 
 * `clone` a repository, do not download the `.zip` file.
 
+
 * Do **not** combine `git` commands
    ```bash
    $ git commit -am "myMessage" # do not do this
    ```
 
 * Stage only 1 file at once using
+
    ```bash
    $ git add myFile.txt
    ```
 
-
 * Commit **only a few files** at once (after multiple separate `git add` commands)
 
-* Always **sync your fork** before starting to work on a new branch
-   ```bash
-   $ git remote -v # verify to have the right remote set
-   $ git fetch upstream
-   $ git merge upstream/master
-   $ git push origin master # do not do git push (!)
-   ```
-
 * `Push` often - avoid conflicts
 
 <br><br>
diff --git a/branches.md b/branches.md
index 6a5eaf044bf1ff09a5d205418c3f68111c45e53f..b00b94f266f617208f63b83987ac1ba564f9ae4d 100644
--- a/branches.md
+++ b/branches.md
@@ -84,36 +84,6 @@ Use the **interface** to make use of your peers to review your code!
 Once merged, you can delete the branch via the interface.
 
 
-## Gitlab interface
-<img src="https://gitlab.com/gitlab-com/gitlab-artwork/raw/master/logo/logo.png" alt="GitLab" style="width: 100px;"/>
-
-Detailed information is on [docs.gitlab.com/ce/gitlab-basics/add-merge-request.html](https://docs.gitlab.com/ce/gitlab-basics/add-merge-request.html).
-
-1. Click on **New merge request**
-
-![New Merge Request](https://docs.gitlab.com/ee/gitlab-basics/img/merge_request_new.png)
-<br><br>
-2. Compare the branches
-
-![Compare branches](https://docs.gitlab.com/ee/gitlab-basics/img/merge_request_select_branch.png)
-
-
-<ol start="3">
-  <li>Assign your peer
-  <br>
-
-  ![Assigning a peer](https://gitlab.com/gitlab-org/gitlab-ce/uploads/6445f80f96d8cb85b320322d36d8bb0e/assigneesidebar.png)
-  </li>
-</ol>
-
-
-<ol start="4">
-  <li>Submit the MR
-
-  ![Submit MR](https://docs.gitlab.com/ee/gitlab-basics/img/merge_request_page.png)</li>
-</ol>
-
-
 ## Github interface
 <img src="https://assets-cdn.github.com/images/modules/logos_page/GitHub-Mark.png" alt="GitHub" style="width: 100px;"/>
 
diff --git a/essential_commands.md b/essential_commands.md
index 96a4ab9ca888c5f70823a1ba7de289fb4d7c38d9..43bde21dbe1853767cff601bf054f8a2c11dd323 100644
--- a/essential_commands.md
+++ b/essential_commands.md
@@ -36,6 +36,15 @@ $ git status
 ```
 
 
+## Be safe and create a new branch 
+
+(more on branches in a few minutes)
+<br><br><br><br><br>
+```bash
+$ git checkout -b matrix_vect_mult_myName
+```
+
+
 ## Modify a file
 
 Modify and rename `addTwoNumbers.m` in the folder `firstCommit`
@@ -81,7 +90,7 @@ $ git add firstCommit/addTwoNumbers_myName.m
 ```bash
 $ git diff
 ```
-exit with `:q`
+exit with `q`
 
 
 ## Add a commit message
@@ -112,10 +121,6 @@ $ git log
 ```
 exit by typing `q`
 
-<div class="fragment">
-<br><br>
-You just pushed to `master`. This is **not a good** practice (more later!).
-
 
 ## Do it yourself
 
diff --git a/github_gitlab.md b/github_gitlab.md
index ea5e300d8dee6246fb4012881022f15abd4b9b2e..920ba0e78a611a2495b15bd30d7e2a3f4298be87 100644
--- a/github_gitlab.md
+++ b/github_gitlab.md
@@ -21,5 +21,3 @@ Positive point: GitHub and GitLab are (almost) the same.
 [https://git-r3lab.uni.lu](https://git-r3lab.uni.lu)
 <br><img src="https://gitlab.com/gitlab-com/gitlab-artwork/raw/master/logo/logo-extra-whitespace.png" alt="GitLab" style="width: 200px;"/>
 
-
-## Open an issue (Live Demo)
diff --git a/installation.md b/installation.md
index d50e033498ec7bfa7735c8491cf8209a75094896..315f3d29f757ed85c388d36f1d1c2af0e2896458 100644
--- a/installation.md
+++ b/installation.md
@@ -73,7 +73,7 @@ $ git clone https://github.com/userName/myRepo.git myRepo
 <br>
 Clone the training repository with
 ```bash
-$ git clone https://git-r3lab.uni.lu/git-training/practice.git practice
+$ git clone https://github.com/uni-lu/practice.git practice
 ```
 <br>
 You may be prompted to enter your credentials.
diff --git a/list.json b/list.json
index 21d7166127ba7694cf01a6d8f3753e2e8685e89c..1e09f925c05a840f51a47256af93b944d4e84a5c 100644
--- a/list.json
+++ b/list.json
@@ -58,11 +58,5 @@
         "attr": {
           "data-background": "../img/whiteBG.jpg"
         }
-    },
-    {
-        "filename": "ready.md",
-        "attr": {
-          "data-background": "../img/whiteBG.jpg"
-        }
     }
 ]
diff --git a/what_is_git.md b/what_is_git.md
index 649f5c9462ab97edaa9ebd5ef6514ec9860b3d91..8488d139447b8e405b22b7d15c47f8c467a98bd2 100644
--- a/what_is_git.md
+++ b/what_is_git.md
@@ -11,6 +11,17 @@
 <div align="left"><small>[1] *https://en.wikipedia.org/wiki/Git*</small></div>
 
 
+## Funny story
+
+![](img/git_definition.png)
+<br><br>
+```
+I'm an egotistical bastard, and I name all my projects after myself. 
+First Linux, now git.
+```
+Linus Torvald (2007-06-14)
+
+
 ## What is the use of `git`?
 
 * No need to fully rewrite code; **reuse code** and **save time**