docs: Update docs version picker for 0.7.0 (#746)

Signed-off-by: Charlie Truong <chtruong@nvidia.com>

Author: chtruong814

docs/versions1.json

@@ -4,11 +4,21 @@
         "url": "https://docs.nvidia.com/nemo/export-deploy/nightly/"
     },
     {
-        "name": "0.5.0 (latest)",
-        "version": "0.5.0",
+        "name": "0.7.0 (latest)",
+        "version": "0.7.0",
         "url": "https://docs.nvidia.com/nemo/export-deploy/latest/",
         "preferred": true
     },
+    {
+        "name": "0.6.0",
+        "version": "0.6.0",
+        "url": "https://docs.nvidia.com/nemo/export-deploy/0.6.0/"
+    },
+    {
+        "name": "0.5.0",
+        "version": "0.5.0",
+        "url": "https://docs.nvidia.com/nemo/export-deploy/0.5.0/"
+    },
     {
         "name": "0.4.0",
         "version": "0.4.0",