1.Add Installation Guide in DOCS module in English.

config.toml

@@ -107,9 +107,16 @@ paginate = 10
 [[menu.main]]
     identifier = "docs"
     name = "Docs"
-    url  = "/en/building/docs.html"
+    url  = "/en/docs.html"
     weight = 5
-    #hasChildren = true
+    hasChildren = true
+
+[[menu.main]]
+    identifier = "install"
+    name = "Installation Guide"
+    parent = "docs"
+    url = "/en/docs/Installation/Installation.html"
+    weight=3
 
 [[menu.main]]
     identifier = "download"

content/en/building/docs.md

-+++
-title = "DOCS"
-id = "download"
-+++
-
-#### English DOCS being constructed
-Welcome to join [DOCS](https://gitee.com/openeuler/docs) team.

content/en/versions/version1.0.md

@@ -4,6 +4,7 @@ version="openEuler 1.0 Beta"
 description="openEuler is an open-source Linux distribution. It is an efficient, stable, and secure open-source operating system built by global contributors and applies to database, big data, cloud computing, and artificial intelligence scenarios.  "
 status=""
 releaseDate=""
+installationGuide="https://openeuler.org/en/docs/Installation/Installation.html"
 EOLDate=""
 ISOUrl="https://121.36.97.194/openeuler1.0/iso/"
 +++

i18n/en.toml

@@ -103,4 +103,4 @@ other = "Release Note:"
 other = "Download ISO:"
 
 [download_installationGuide]
-other = "Installation guide:"
\ No newline at end of file
+other = "Installation Guide:"
\ No newline at end of file