manual, collaboration

collections/collaboration/contribute.md

@@ -68,16 +68,16 @@ To do so, you simply need to clone the forked repository on your local computer
 The steps are the following:
 
 * In the terminal, write the following line to clone the forked `info_grid` repository:
-  * ```
+    ```
     git clone https://github.com/YOUR_GIT_ACCOUNT/info_grid
     ```
     * make sure to write your own Github account in the URL
 * To deploy the mdbook locally, first go to the **info_grid** directory:
-  * ```
+    ```
     cd info_grid
     ```
 * Then write the following line. It will open the manual automatically.
-  * ```
+    ```
     mdbook serve -o
     ```
   * Note that, by default, the URL is the following, using port `3000`, `http://localhost:3000/`

collections/collaboration/development_cycle.md

@@ -1,6 +1,6 @@
 The development cycle is explained below:
 
-![Untitled presentation (1)](https://user-images.githubusercontent.com/8425762/170034170-7247a737-9d99-481d-9289-88d361275043.png)
+![dev_cycle](./img/dev_cycle.png)