Live Template: use i18n attributes, update docs

live_templates/src/main/resources/META-INF/plugin.xml

@@ -32,6 +32,8 @@
   <!-- Text to display as company information on Settings | Plugin page -->
   <vendor url="https://plugins.jetbrains.com">IntelliJ Platform SDK</vendor>
 
+  <resource-bundle>messages.LiveTemplates</resource-bundle>
+
   <extensions defaultExtensionNs="com.intellij">
     <defaultLiveTemplates file="/liveTemplates/Markdown.xml"/>
     <liveTemplateContext implementation="org.intellij.sdk.liveTemplates.MarkdownContext"

live_templates/src/main/resources/liveTemplates/Markdown.xml

@@ -1,9 +1,9 @@
 <templateSet group="Markdown">
   <template name="{"
             value="[$TEXT$]($LINK$)$END$"
-            description="SDK: New link reference"
             toReformat="false"
-            toShortenFQNames="false">
+            toShortenFQNames="false"
+            key="live.template.{.description" resource-bundle="messages.LiveTemplates">
     <variable name="TEXT" expression="" defaultValue="" alwaysStopAt="true"/>
     <variable name="LINK" expression="complete()" defaultValue="" alwaysStopAt="true"/>
     <context>
@@ -12,9 +12,9 @@
   </template>
   <template name="mc"
             value="$TITLE$"
-            description="SDK: Convert to title case"
             toReformat="true"
-            toShortenFQNames="false">
+            toShortenFQNames="false"
+            key="live.template.mc.description" resource-bundle="messages.LiveTemplates">
     <variable name="TITLE" expression="titleCase(SELECTION)" defaultValue="the quick brown fox" alwaysStopAt="true" />
     <context>
       <option name="MARKDOWN" value="true" />

live_templates/src/main/resources/messages/LiveTemplates.properties

@@ -0,0 +1,2 @@
+live.template.mc.description=SDK: Convert to title case
+live.template.{.description=SDK: New link reference