Fix labelling

Author: dvdoug

azure-pipelines.yml

@@ -8,11 +8,11 @@ pool:
 
 strategy:
   matrix:
-    php 7.3:
+    PHP 7.3:
       phpVersion: '7.3'
-    php 7.2:
+    PHP 7.2:
       phpVersion: '7.2'
-    php 7.1:
+    PHP 7.1:
       phpVersion: '7.1'
 
 steps:
@@ -26,7 +26,7 @@ steps:
   displayName: 'Use PHP version $(phpVersion)'
 
 - script: composer install --no-interaction --prefer-dist
-  displayName: 'composer install'
+  displayName: 'Composer install'
 
 - script: vendor/bin/phpunit
   displayName: 'PHPUnit'