Update progress.phtml

links to magento dev docs are outdated.  See https://community.magento.com/t5/Technical-Issues/Can-t-install-Magento-2-on-PHP-5-6-30/m-p/82895/highlight/false#M3749 for example

Author: jonashrem

setup/view/magento/setup/readiness-check/progress.phtml

@@ -336,7 +336,7 @@
                 </div>
 
                 <p ng-show="componentDependency.expanded">For additional assistance, see
-                    <a href="http://devdocs.magento.com/guides/v2.0/install-gde/trouble/php/tshoot_php-set.html"
+                    <a href="http://devdocs.magento.com/guides/v2.2/install-gde/trouble/php/tshoot_php-set.html"
                        target="_blank">PHP settings check help
                     </a>.
                 </p>
@@ -392,7 +392,7 @@
 
                 <div class="readiness-check-side">
                     <p class="side-title">Need Help?</p>
-                    <a href="http://devdocs.magento.com/guides/v2.0/install-gde/system-requirements.html" target="_blank">PHP Extension Help</a>
+                    <a href="http://devdocs.magento.com/guides/v2.2/install-gde/system-requirements.html" target="_blank">PHP Extension Help</a>
                 </div>
 
                 <span class="readiness-check-icon icon-failed-round"></span>
@@ -413,7 +413,7 @@
                         <p>
                             The best way to resolve this is to install the correct missing extensions. The exact fix depends on our server, your host, and other system variables.
                             <br>
-                            Our <a href="http://devdocs.magento.com/guides/v2.0/install-gde/system-requirements.html" target="_blank">PHP extension help</a> can get you started.
+                            Our <a href="http://devdocs.magento.com/guides/v2.2/install-gde/system-requirements.html" target="_blank">PHP extension help</a> can get you started.
                         </p>
                         <p>
                             For additional assistance, contact your hosting provider.
@@ -477,7 +477,7 @@
 
             <div class="readiness-check-side">
                 <p class="side-title">Need Help?</p>
-                <a href="http://devdocs.magento.com/guides/v2.0/install-gde/install/file-system-perms.html" target="_blank">File Permission Help</a>
+                <a href="http://devdocs.magento.com/guides/v2.2/install-gde/prereq/file-system-perms.html" target="_blank">File Permission Help</a>
             </div>
 
             <span class="readiness-check-icon icon-failed-round"></span>
@@ -500,7 +500,7 @@
                         The best way to resolve this is to allow write permissions for files in the following Magento directories and subdirectories. The exact fix depends on your server, your host,
                         and other system variables.
                         <br>
-                        For help, see our <a href="http://devdocs.magento.com/guides/v2.0/install-gde/install/file-system-perms.html" target="_blank">File Permission Help</a> or call your hosting provider.
+                        For help, see our <a href="http://devdocs.magento.com/guides/v2.2/install-gde/prereq/file-system-perms.html" target="_blank">File Permission Help</a> or call your hosting provider.
                     </p>
                     <ul class="list" ng-show="permissions.expanded" ng-init="showDetails=false">
                         <li