Put browser-compat in front-runner for xpath & xslt (#5500)

* Put browser-compat in front-runner for xpath

* Put browser-compat in front-runner for xslt

files/en-us/web/xpath/axes/child/index.html

@@ -4,6 +4,7 @@
 tags:
   - Axe
   - XPath
+browser-compat: xpath.axes.child
 ---
 <p>The <code>child</code> axis indicates the children of the context node. If an XPath expression does not specify an axis, the <code>child</code> axis is understood by default. Since only the root node or element nodes have children, any other use will select nothing.</p>
 
@@ -43,6 +44,6 @@ <h2 id="Specifications">Specifications</h2>
 
 <h2 id="Browser_compatibility">Browser compatibility</h2>
 
-<p>{{Compat("xpath.axes.child")}}</p>
+<p>{{Compat}}</p>
 
 <p>{{QuickLinksWithSubpages("/en-US/docs/Web/XPath")}}</p>

files/en-us/web/xpath/axes/self/index.html

@@ -4,6 +4,7 @@
 tags:
   - Axe
   - XPath
+browser-compat: xpath.axes.self
 ---
 <p>The <code>self</code> axis indicates the context node itself. It can be abbreviated as a single period (<code>.</code>).</p>
 
@@ -43,6 +44,6 @@ <h2 id="Specifications">Specifications</h2>
 
 <h2 id="Browser_compatibility">Browser compatibility</h2>
 
-<p>{{Compat("xpath.axes.self")}}</p>
+<p>{{Compat}}</p>
 
 <p>{{QuickLinksWithSubpages("/en-US/docs/Web/XPath")}}</p>

files/en-us/web/xslt/element/stylesheet/index.html

@@ -6,6 +6,7 @@
   - Reference
   - StyleSheet
   - XSLT
+browser-compat: xslt.elements.stylesheet
 ---
 <div>{{XSLTRef}}{{QuickLinksWithSubpages("/en-US/docs/Web/XSLT")}}</div>
 
@@ -93,4 +94,4 @@ <h2 id="Specifications">Specifications</h2>
 
 <h2 id="Browser_compatibility">Browser compatibility</h2>
 
-<p>{{Compat("xslt.elements.stylesheet")}}</p>
+<p>{{Compat}}</p>