Update and rename entity-button.markdown to button.markdown (home-ass…

…istant#11895)

* Update and rename entity-button.markdown to button.markdown

* Update _redirects

source/_lovelace/entity-button.markdown → source/_lovelace/button.markdown

@@ -1,25 +1,25 @@
 ---
-title: "Entity Button Card"
-sidebar_label: Entity Button
-description: "The Entity Button card allows you to add buttons to perform tasks"
+title: "Button Card"
+sidebar_label: Button
+description: "The Button card allows you to add buttons to perform tasks"
 ---
 
-The Entity Button card allows you to add buttons to perform tasks.
+The Button card allows you to add buttons to perform tasks.
 
 <p class='img'>
-<img src='/images/lovelace/lovelace_entity_button_card.png' alt='Screenshot of the entity button card'>
-Screenshot of the Entity Button card.
+<img src='/images/lovelace/lovelace_entity_button_card.png' alt='Screenshot of the button card'>
+Screenshot of the Button card.
 </p>
 
 ```yaml
-type: entity-button
+type: button
 entity: light.living_room
 ```
 
 {% configuration %}
 type:
   required: true
-  description: entity-button
+  description: button
   type: string
 entity:
   required: true
@@ -189,7 +189,7 @@ user:
 Title and Script Service Example:
 
 ```yaml
-type: entity-button
+type: button
 name: Turn Off Lights
 tap_action:
   action: call-service
@@ -200,6 +200,6 @@ entity: script.turn_off_lights
 ```
 
 <p class='img'>
-<img src='/images/lovelace/lovelace_entity_button_complex_card.png' alt='Screenshot of the entity button card'>
-Screenshot of the Entity Button card with Title and Script Service.
+<img src='/images/lovelace/lovelace_entity_button_complex_card.png' alt='Screenshot of the button card'>
+Screenshot of the Button card with Title and Script Service.
 </p>

source/_redirects

@@ -2079,3 +2079,6 @@
 /addons/snips https://github.com/home-assistant/hassio-addons/blob/master/snips/README.md
 /addons/ssh https://github.com/home-assistant/hassio-addons/blob/master/ssh/README.md
 /addons/tellstick https://github.com/home-assistant/hassio-addons/blob/master/tellstick/README.md
+
+# Lovelace documentation
+/lovelace/entity-button /lovelace/button