added mylyn docs feature to language server update repo to allow latest lsp4e version to be installed/updated

eclipse-language-servers/org.springframework.tooling.boot.ls/META-INF/MANIFEST.MF

@@ -12,7 +12,7 @@ Require-Bundle: org.eclipse.jdt.launching;bundle-version="3.9.0",
  org.eclipse.jdt.ui;bundle-version="3.13.0",
  org.eclipse.tm4e.core;bundle-version="0.1.0",
  org.eclipse.tm4e.ui;bundle-version="0.1.0",
- org.eclipse.lsp4e;bundle-version="0.13.1",
+ org.eclipse.lsp4e;bundle-version="0.13.1.202003021135",
  org.eclipse.lsp4j;bundle-version="0.9.0",
  org.eclipse.lsp4j.jsonrpc;bundle-version="0.9.0",
  org.eclipse.ui.workbench,

eclipse-language-servers/org.springframework.tooling.ls.integration.repository/category.xml

@@ -24,6 +24,10 @@
 
 	<category-def name="deps" label="Dependencies"/>
 
+	<feature id="org.eclipse.mylyn.wikitext_feature">
+		<category name="deps"/>
+	</feature>
+
 	<bundle id="org.springframework.tooling.ls.eclipse.commons">
 		<category name="deps"/>
 	</bundle>