Small fixes in README

README.md

@@ -4,6 +4,12 @@ First attempt of a PHP client for the [GBIF API](https://www.gbif.org/developer/
 
 A [Drupal module](https://www.drupal.org/project/gbif2) uses this client to enable users to list GBIF occurrences with the Views module on their websites.
 
+## Installation
+
+```
+composer require restelae/php-gbif
+```
+
 ## Usage
 
 ### Get an occurrence knowing its ID (key)
@@ -33,7 +39,7 @@ $occ->search(['taxonKey' => 3329049]);
 // Search by dataset key.
 $occ->search([
   'datasetKey' => '7b5d6a48-f762-11e1-a439-00145eb45e9a',
-  'limit' =>20,
+  'limit' => 20,
 ]);
 
 ```