[Documentation] Certificate and Valet+ troubleshooting updates (#637)

* Add troubleshooting note about deleting devcert folder

* Add note about using Valet 1.0.21

* Update pwa-devdocs/src/pwa-buildpack/troubleshooting/index.md

Co-Authored-By: jcalcaben <jcalcaben@users.noreply.github.com>

pwa-devdocs/src/pwa-buildpack/troubleshooting/index.md

@@ -72,7 +72,7 @@ Another program or process has edited your [host file] and removed the entry for
 
 **Browser does not trust the generated SSL certificate**{:#untrusted-ssl-cert}
 
-Generating certificates is handled by [devcert]. It depends on OpenSSL, so make sure you have a current version of openssl on your system using the following command:
+Generating certificates is handled by [devcert][]. It depends on OpenSSL, so make sure you have a current version of openssl on your system using the following command:
 
 ``` sh
 openssl version
@@ -82,7 +82,18 @@ The version should be 1.0 or above (or LibreSSL 2, in the case of OSX High Sierr
 
 You can install higher versions of OpenSSL with [Homebrew] on OSX, [Chocolatey] on Windows, or your Linux distribution's package manager.
 
-If you're running Linux, machine make sure that `libnss3-tools` (or whatever the equivalent is) is installed on your system. Further information provided in [this section of the devcert readme].
+If you're running Linux, make sure that `libnss3-tools` (or whatever the equivalent is) is installed on your system. Further information provided in [this section of the devcert readme][].
+
+Some users have suggested deleting the `devcert` folder to trigger certificate regeneration.  
+
+* For MacOS users, this folder is usually found at:
+  ```sh
+~/Library/Application Support/devcert
+  ```
+* For Windows users, this folder is usually found at: 
+  ```text
+${User}\AppData\Local\devcert
+  ```
 
 [create an issue]: https://github.com/magento-research/pwa-buildpack/issues
 [Slack channel]: https://magentocommeng.slack.com/messages/C71HNKYS2/team/UAFV915FB/

pwa-devdocs/src/venia-pwa-concept/setup/index.md

@@ -76,6 +76,9 @@ Use the default cloud instance as the backend or set up your own [local developm
 The Venia storefront has been verified to be compatible with the following local setups:
 
 * Magento 2 installed using [valet-plus][]
+
+  **Note:** If you are having `Magento2ValetDriver` problems, try downgrading to version **1.0.21**.
+
 * [Vagrant Box for Magento 2 developers][]
 
 Don't forget to install the [Venia sample data][]!