Merge branch 'patch-1' into 'master'

Update README.md

See merge request !4

README.md

@@ -54,6 +54,21 @@ To check if the correct version of mongodb extension is installed:
 sudo pecl list
 ```
 
+You will need php7.2-mbstring:
+
+```
+sudo apt-get install php7.2-mbstring
+```
+
+Edit php.ini (PHP configuration file) :
+```
+vim /etc/php/7.2/cli/php.ini 
+```
+In the dynamic extensions section, insert the following line :
+```
+extension=mysqli.so;
+```
+
 And to check that the extension is actually enabled and used by php:
 
 ```
@@ -62,6 +77,7 @@ php -i | grep mongo
 
 ### Installation
 
+In the monitoring directory :
 ```
 composer install
 touch storage/app/db.sqlite
@@ -73,6 +89,7 @@ php artisan key:generate
 To check your installation is correct, you can run the phpunit tests:
 
 ```
+sudo apt-get install php-dom
 ./vendor/bin/phpunit
 ```
 
@@ -83,3 +100,9 @@ To check your installation is correct, you can run the phpunit tests:
 npm install
 npm run watch
 ```
+
+### Launch monitoring
+```
+php artisan serve
+```
+Then, see your monitoring interface at http://127.0.0.1:8000/
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