OfficeDev PnP - Provision Page content?

David,

What you could do is use a current team site, with a wiki page as welcome page. Add some text/html to this page and use below powershell command to extract this site as template:

Connect-SPOnline -Url "Url to your team site"
Get-SPOProvisioningTemplate -Out "C:\temp\teamsite.xml

Within the extracted template, lookup your page (pnp:Pages element). Within the page there should be a Field called 'WikiField'. Your html is in here. So to put html in a page and provision it within a template: put it in this field.

<pnp:Field FieldName="WikiField"><![CDATA[<div class="ExternalClass972799D44F734918B33EB6504C516F27"><table id="layoutsTable" style="width&#58;100%;"><tbody><tr style="vertical-align&#58;top;"><td style="width&#58;100%;"><div class="ms-rte-layoutszone-outer" style="width&#58;100%;"><div class="ms-rte-layoutszone-inner" style="min-height&#58;420px;"><p>This is some test <strong>text.</strong><br></p></div></div></td></tr></tbody></table><span id="layoutsData" style="display&#58;none;">false,false,1</span></div>]]></pnp:Field>

you could do it like this: 

     <pnp:WebPart Column="1" Row="1" Title="Script Editor">
              <pnp:Contents>
                <webParts>
                  <webPart xmlns="http://schemas.microsoft.com/WebPart/v3">
                    <metaData>
                      <type name="Microsoft.SharePoint.WebPartPages.ScriptEditorWebPart, Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" />
                      <importErrorMessage>Cannot import this Web Part.</importErrorMessage>
                    </metaData>
                    <data>
                      <properties>
                        <property name="ExportMode" type="exportmode">All</property>
                        <property name="HelpUrl" type="string" />
                        <property name="Hidden" type="bool">False</property>
                        <property name="Description" type="string">Allows authors to insert HTML snippets or scripts.</property>
                        <property name="Content" type="string">
                          Add some project info here.&lt;br /&gt;&lt;br /&gt;
                          &lt;div style=&quot;float:left; width:150px; padding-right:12px;&quot;&gt;
                          &lt;div &gt;
                          &lt;a href=&quot;{SiteCollection}/TEN&quot; title=&quot;test&quot;&gt;
                          &lt;img width=&quot;150&quot; height=&quot;124&quot; src=&quot;{SiteCollection}/SiteAssets/Tiles/test.jpg&quot;/&gt;
                          &lt;/a&gt;
                          &lt;/div&gt;
                          &lt;div&gt;
                          &lt;a href=&quot;{SiteCollection}/TEN&quot; title=&quot;test&quot;&gt;
                          &lt;h2 style=&quot;text-align:center;&quot;&gt;test&lt;/h2&gt;
                          &lt;/a&gt;
                          &lt;/div&gt;
                          &lt;/div&gt;
                          &lt;div style=&quot;float:left; width:150px; padding-right:12px;&quot;&gt;
                          &lt;div &gt;
                          &lt;a href=&quot;{SiteCollection}/EXE&quot; title=&quot;Execution&quot;&gt;
                          &lt;img width=&quot;150&quot; height=&quot;124&quot; src=&quot;{SiteCollection}/SiteAssets/Tiles/EXE.jpg&quot;/&gt;
                          &lt;/a&gt;
                          &lt;/div&gt;
                          &lt;div&gt;
                          &lt;a href=&quot;{SiteCollection}/EXE&quot; title=&quot;test&quot;&gt;
                          &lt;h2 style=&quot;text-align:center;&quot;&gt;test&lt;/h2&gt;
                          &lt;/a&gt;
                          &lt;/div&gt;
                          &lt;/div&gt;
                          &lt;div style=&quot;float:left; width:150px; padding-right:12px;&quot;&gt;
                          &lt;div &gt;
                          &lt;a href=&quot;{SiteCollection}/CLO&quot; title=&quot;test&quot;&gt;
                          &lt;img width=&quot;150&quot; height=&quot;124&quot; src=&quot;{SiteCollection}/SiteAssets/Tiles/test.jpg&quot;/&gt;
                          &lt;/a&gt;
                          &lt;/div&gt;
                          &lt;div&gt;
                          &lt;a href=&quot;{SiteCollection}/CLO&quot; title=&quot;test&quot;&gt;
                          &lt;h2 style=&quot;text-align:center;&quot;&gt;test&lt;/h2&gt;
                          &lt;/a&gt;
                          &lt;/div&gt;
                          &lt;/div&gt;
                        </property>
                        <property name="CatalogIconImageUrl" type="string" />
                        <property name="Title" type="string">Script Editor</property>
                        <property name="AllowHide" type="bool">True</property>
                        <property name="AllowMinimize" type="bool">True</property>
                        <property name="AllowZoneChange" type="bool">True</property>
                        <property name="TitleUrl" type="string" />
                        <property name="ChromeType" type="chrometype">None</property>
                        <property name="AllowConnect" type="bool">True</property>
                        <property name="Width" type="unit" />
                        <property name="Height" type="unit" />
                        <property name="HelpMode" type="helpmode">Navigate</property>
                        <property name="AllowEdit" type="bool">True</property>
                        <property name="TitleIconImageUrl" type="string" />
                        <property name="Direction" type="direction">NotSet</property>
                        <property name="AllowClose" type="bool">True</property>
                        <property name="ChromeState" type="chromestate">Normal</property>
                      </properties>
                    </data>
                  </webPart>
                </webParts>
              </pnp:Contents>
            </pnp:WebPart>