docs/sources/administration/image_rendering.md: Improve language

docs/sources/administration/image_rendering.md

@@ -12,7 +12,7 @@ weight = 8
 
 Grafana supports automatic rendering of panels and dashboards as PNG images. This allows Grafana to automatically generate images of your panels to include in [alert notifications]({{< relref "../alerting/notifications.md" >}}).
 
-When an image is being rendered the PNG-image is temporarily written to the file system. When an image is rendered, the PNG image is temporary written to the `png` folder in the Grafana `data` folder.
+While an image is being rendered, the PNG image is temporarily written to the file system. When the image is rendered, the PNG image is temporarily written to the `png` folder in the Grafana `data` folder.
 
 A background job runs every 10 minutes and removes temporary images. You can configure how long an image should be stored before being removed by configuring the [temp-data-lifetime]({{< relref "../installation/configuration/#temp-data-lifetime" >}}) setting.
 
@@ -156,7 +156,7 @@ libx11-6 libx11-xcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3
 
 **Centos:**
 
-On a minimal Centos install the following dependencies have been confirmed as needed for the image rendering to function:
+On a minimal Centos installation, the following dependencies have been confirmed as needed for the image rendering to function:
 
 ```bash
 libXcomposite libXdamage libXtst cups libXScrnSaver pango atk adwaita-cursor-theme adwaita-icon-theme at at-spi2-atk at-spi2-core cairo-gobject colord-libs dconf desktop-file-utils ed emacs-filesystem gdk-pixbuf2 glib-networking gnutls gsettings-desktop-schemas gtk-update-icon-cache gtk3 hicolor-icon-theme jasper-libs json-glib libappindicator-gtk3 libdbusmenu libdbusmenu-gtk3 libepoxy liberation-fonts liberation-narrow-fonts liberation-sans-fonts liberation-serif-fonts libgusb libindicator-gtk3 libmodman libproxy libsoup libwayland-cursor libwayland-egl libxkbcommon m4 mailx nettle patch psmisc redhat-lsb-core redhat-lsb-submod-security rest spax time trousers xdg-utils xkeyboard-config