[minor] fix version property in releases pages (#1319)

diff --git a/docs/_releases/1.0.0.md b/docs/_releases/1.0.0.md
index f5e5e57..a6fc834 100644
--- a/docs/_releases/1.0.0.md
+++ b/docs/_releases/1.0.0.md
@@ -1,5 +1,5 @@
 ---
-version: '1.0'
+version: '1.0.0'
 order: 100
 layout: page
 menu_title: '1.0'
diff --git a/docs/_releases/1.1.0.md b/docs/_releases/1.1.0.md
index 7e23544..0583a72 100644
--- a/docs/_releases/1.1.0.md
+++ b/docs/_releases/1.1.0.md
@@ -1,5 +1,5 @@
 ---
-version: '1.1'
+version: '1.1.0'
 order: 110
 layout: page
 menu_title: '1.1'
diff --git a/docs/_releases/1.2.0.md b/docs/_releases/1.2.0.md
index 7791669..453fb4d 100644
--- a/docs/_releases/1.2.0.md
+++ b/docs/_releases/1.2.0.md
@@ -1,5 +1,5 @@
 ---
-version: '1.2'
+version: '1.2.0'
 order: 120
 layout: page
 menu_title: '1.2'
diff --git a/docs/_releases/1.3.0.md b/docs/_releases/1.3.0.md
index 5d7fb80..738443e 100644
--- a/docs/_releases/1.3.0.md
+++ b/docs/_releases/1.3.0.md
@@ -1,5 +1,5 @@
 ---
-version: '1.3'
+version: '1.3.0'
 order: 130
 layout: page
 menu_title: '1.3'
diff --git a/docs/_releases/1.4.0.md b/docs/_releases/1.4.0.md
index 596dc4f..4b27bc2 100644
--- a/docs/_releases/1.4.0.md
+++ b/docs/_releases/1.4.0.md
@@ -1,5 +1,5 @@
 ---
-version: '1.4'
+version: '1.4.0'
 order: 140
 layout: page
 menu_title: '1.4'