docs: Update shortlinks

Change-Id: Ib696548487ee734dc2f8da4fdec303f61c3e951e
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/247454
Reviewed-by: Hector Ayala <hayala@google.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Docs-Not-Needed: Hector Ayala <hayala@google.com>
Docs-Not-Needed: Kayce Basques <kayce@google.com>
Pigweed-Auto-Submit: Hector Ayala <hayala@google.com>
Commit-Queue: Kayce Basques <kayce@google.com>
diff --git a/docs/conf.py b/docs/conf.py
index 581f848..939ab3a 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -231,13 +231,14 @@
     'docs/os_abstraction_layers': './os/index.html',
     'docs/release_notes/index': '../../changelog.html',
     'docs/release_notes/2022_jan': '../../changelog.html',
-    # Can be deleted after pw_enviro stuff gets published.
-    'drafts/pw_enviro/index': 'https://storage.googleapis.com/pigweed-docs-try/220311/docs/showcases/pw_enviro/tutorial.html',
     'live/index': 'https://docs.google.com/document/d/1zcXQoMX6NDSe4cdxzt8afLbDcs8GSmI_Bsy5hTF_RVM/edit',
     'module_guides': './modules.html',
     'pw_sys_io_pico/docs': '../pw_sys_io_rp2040/docs.html',
     'pw_tokenizer/cli': './docs.html',
     'pw_tokenizer/guides': './docs.html',
+    'seeds/index': './seed/0000-index.html',
+    'sense/index': './docs/showcases/sense/',
+    'tour/index': './docs/showcases/sense/',
 }
 
 # One entry per manual page. List of tuples