add new videos; minor code tweaks

Author: wescpy

Diff for: README.md

@@ -97,7 +97,7 @@ The table below summarizes migration module resources currently available along
 
 Module | Topic | Video | Codelab | START here | FINISH here
 --- | --- | --- | --- | --- | ---
-0|Baseline app| [link](http://twitter.com/googledevs/status/1407755281786867714?utm_source=twitter&utm_medium=unpaidsoc&utm_campaign=CDR_wes_aap-serverless_smsintro_201023&utm_content=-) | _N/A_ (no tutorial; just review the code) | _N/A_ | Module 0 [code](/mod0-baseline) (2.x)
+0|Baseline app| [link](https://twitter.com/googledevs/status/1407755281786867714?utm_source=twitter&utm_medium=unpaidsoc&utm_campaign=CDR_wes_aap-serverless_smsintro_201023&utm_content=-) | _N/A_ (no tutorial; just review the code) | _N/A_ | Module 0 [code](/mod0-baseline) (2.x)
 1|Migrate to Flask| [link](https://twitter.com/googledevs/status/1413273119071031299?utm_source=twitter&utm_medium=unpaidsoc&utm_campaign=CDR_wes_aap-serverless_mgrwa2flsk_201008&u%20tm_content=-) | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-1-flask?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrwa2flsk_201008&utm_content=-) | Module 0 [code](/mod0-baseline) (2.x) | Module 1 [code](/mod1-flask) (2.x) (and [code](/mod1b-flask) (3.x))
 2|Migrate to Cloud NDB| [link](https://twitter.com/googledevs/status/1417892493383802883?utm_source=twitter&utm_medium=unpaidsoc&utm_campaign=CDR_wes_aap-serverless_mgrcloudndb_201021&utm_content=-) | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-2-cloudndb?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrcloudndb_201021&utm_content=-) | Module 1 [code](/mod1-flask) (2.x) | Module 2 [code](/mod2a-cloudndb) (2.x) & [code](/mod2b-cloudndb) (3.x)
 3|Migrate to Cloud Datastore| [link](http://twitter.com/googledevs/status/1422966928910393347?utm_source=twitter&utm_medium=unpaidsoc&utm_campaign=CDR_wes_aap-serverless_mgrcloudds_201003&utm_content=-) | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-3-datastore?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrcloudds_201003&utm_content=-) | Module 2 [code](/mod2a-cloudndb) (2.x) & [code](/mod2b-cloudndb) (3.x) | Module 3 [code](/mod3a-datastore) (2.x) & [code](/mod3b-datastore) (3.x)
@@ -114,8 +114,8 @@ Module | Topic | Video | Codelab | START here | FINISH here
 14|Migrate service between projects| _TBD_ | _TBD_ | _TBD_ | _TBD_
 15|Add App Engine `blobstore`| [link](https://twitter.com/googledevs/status/1552384740052934657?utm_source=twitter&utm_medium=unpaidsoc&utm_campaign=CDR_wes_aap-serverless_mgrblobstore_sms_202029&utm_content=-) | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-15-blobstore?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrblobstore_sms_202029&utm_content=-) | Module 0 [code](/mod0-baseline) (2.x) | Module 15 [code](/mod15-blobstore) (2.x)
 16|Migrate to Cloud Storage| [link](https://twitter.com/googledevs/status/1559285905961123845?utm_source=twitter&utm_medium=unpaidsoc&utm_campaign=CDR_wes_aap-serverless_mgrcloudstorage_sms_202029&utm_content=-) | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-16-cloudstorage?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrcloudstorage_sms_202029&utm_content=-) | Module 15 [code](/mod15-blobstore) (2.x) | Module 16 [code](/mod16-cloudstorage) (2.x & 3.x)
-17|Migrate to Python 3 bundled services| _TBD_ | [link](http://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-17-bundled?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrwormhole_sms_202002&utm_content=-) | Module 1 [code](/mod1-flask) (2.x) | Module 1 [code](/mod1b-flask) (3.x)
-18|Add App Engine `taskqueue` pull tasks| _TBD_ | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-18-gaepull?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrgaepull_sms_202013&utm_content=-) | Module 1 [code](/mod1-flask) (2.x) | Module 18 [code](/mod18-gaepull) (2.x)
+17|Migrate to Python 3 bundled services| [link](https://twitter.com/googledevs/status/1587855923254624259?utm_source=twitter&utm_medium=unpaidsoc&utm_campaign=CDR_wes_aap-serverless_mgrwormhole_sms_202002&utm_content=-) | [link](http://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-17-bundled?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrwormhole_sms_202002&utm_content=-) | Module 1 [code](/mod1-flask) (2.x) | Module 1 [code](/mod1b-flask) (3.x)
+18|Add App Engine `taskqueue` pull tasks| [link](https://twitter.com/googledevs/status/1598013491381665808?utm_source=twitter&utm_medium=unpaidsoc&utm_campaign=CDR_wes_aap-serverless_mgrgaepull_sms_202013&utm_content=-) | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-18-gaepull?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrgaepull_sms_202013&utm_content=-) | Module 1 [code](/mod1-flask) (2.x) | Module 18 [code](/mod18-gaepull) (2.x)
 19|Migrate to Cloud Pub/Sub| _TBD_ | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-19-pubsub?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrpubsub_sms_202016&utm_content=-) | Module 18 [code](/mod18-gaepull) (2.x) | Module 19 [code](/mod19-pubsub) (2.x & 3.x)
 20|Add App Engine `users` | _TBD_ | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-20-gaeusers?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgrgaeusers_sms_202119&utm_content=-)| Module 1 [code](/mod1-flask) (2.x) | Module 20 [code](/mod20-gaeusers) (2.x)
 21|Migrate to Cloud Identity Platform | _TBD_ | [link](https://codelabs.developers.google.com/codelabs/cloud-gae-python-migrate-21-idenplat?utm_source=codelabs&utm_medium=et&utm_campaign=CDR_wes_aap-serverless_mgridenplat_sms_202119&utm_content=-)| Module 20 [code](/mod20-gaeusers) (2.x) |  Module 21 [code](/mod21a-idenplat) (2.x) & [code](/mod21b-idenplat) (3.x)

Diff for: mod18-gaepull/main.py

@@ -17,8 +17,8 @@
 from google.appengine.ext import ndb
 
 HOUR = 3600
-LIMIT = 10
 TASKS = 1000
+LIMIT = 10
 QNAME = 'pullq'
 QUEUE = taskqueue.Queue(QNAME)
 app = Flask(__name__)

Diff for: mod19-pubsub/main.py

@@ -16,8 +16,8 @@
 import google.auth
 from google.cloud import ndb, pubsub
 
-LIMIT = 10
 TASKS = 1000
+LIMIT = 10
 TOPIC = 'pullq'
 SBSCR = 'worker'
 

Diff for: mod21a-idenplat/templates/index.html

@@ -69,7 +69,7 @@
 
 <body>
 <p>
-Welcome, <span id="who"></span> <span id="admin"><code>(admin)</code></span>
+Welcome, <span id="who"></span>! <span id="admin"><code>(admin)</code></span>
 <button id="logbtn"></button>
 </p><hr>
 

Diff for: mod21b-idenplat/templates/index.html

@@ -69,7 +69,7 @@
 
 <body>
 <p>
-Welcome, <span id="who"></span> <span id="admin"><code>(admin)</code></span>
+Welcome, <span id="who"></span>! <span id="admin"><code>(admin)</code></span>
 <button id="logbtn"></button>
 </p><hr>