Clarify usage explanation

Author: dr-shorthair

ssn/usage/config.js

@@ -22,7 +22,7 @@ var respecConfig = {
   noRecTrack: false,
   logos: [
     {
-      src: "images/OGC-0.png",
+      src: "../images/OGC-0.png",
       alt: "OGC",
       height: "128",
       width: "114",
@@ -39,41 +39,41 @@ var respecConfig = {
     },
     {
       name: "Maxime Lefrançois",
-      w3cid: "50604",
+      w3cid: 50604,
       company: "École Nationale Supérieure des Mines de Saint-Étienne, FR",
       companyURL: "https://www.mines-stetienne.fr/",
       orcid: "0000-0001-9814-8991"
     },
     {
       name: "Rob Warren",
-      w3cid: "144476",
+      w3cid: 144476,
       company: "Glengarry Agriculture and Forestry, CA",
       companyURL: "https://github.com/GlengarryAg"
     },
     {
       name: "Rob Atkinson",
-      w3cid: "90763",
+      w3cid: 90763,
       company: "OGC & Metalinkage, AU",
       companyURL: "https://www.ogc.org/",
       orcid: "0000-0002-7815-2472"
     },
     {
       name: "Luis Moreira de Sousa",
-      w3cid: "145885",
+      w3cid: 145885,
       company: "Instituto Superior Técnico Lisboa, PT",
       companyURL: "https://tecnico.ulisboa.pt/en/",
       orcid: "0000-0002-5851-2071"
     },
     {
       name: "Kathi Schleidt",
-      w3cid: "140963",
+      w3cid: 140963,
       company: "Datacove, AT",
       companyURL: "https://www.datacove.eu/",
       orcid: "0000-0002-8011-7350"
     },
     {
       name: "Sylvain Grellet",
-      w3cid: "143334",
+      w3cid: 143334,
       company: "BRGM, FR",
       companyURL: "https://brgm.fr/",
       orcid: "0000-0001-7656-1830"
@@ -86,7 +86,7 @@ var respecConfig = {
     },
     {
       name: "Nicholas Car",
-      company: "KurrawongAI",
+      company: "KurrawongAI, AU",
       companyURL: "https://kurrawong.ai",
       orcid: "0000-0002-8742-7730"
     }

ssn/usage/index.html

@@ -101,8 +101,7 @@ <h1>Usage of terms in datasets (Consumers)</h1>
     <section id="analysis-datasets">
       <h2>Analysis of usage in datasets</h2>
       <p>
-        <a href="#old-datasets"></a> presents the datasets that use the SSN ontology that have been found, along with
-        their URIs.
+        <a href="#old-datasets"></a> presents the datasets that used the SSN ontology that provided evidence of use of terms defined in the previous Edition.
       </p>
       <table class="numbered" id="old-datasets">
         <caption>
@@ -272,7 +271,7 @@ <h2>Analysis of usage in datasets</h2>
         </tbody>
       </table>
       <p>
-        <a href="#new-datasets"></a> presents new datasets (since 2017) that use the SSN ontology
+        <a href="#new-datasets"></a> presents new datasets (since 2017) that use the SSN ontology, or terms from [[[vocab-ssn-ext]]] which have been incorporated into the 2023 edition.
       </p>
       <table class="numbered" id="new-datasets">
         <caption>
@@ -384,7 +383,7 @@ <h2>Analysis of usage in datasets</h2>
             </td>
             <td>D3, D5, D14, D15, D17, D18, D20, D21, D23</td>
             <td></td>
-            <td>Includes usage of deprecated sub-classes ObservableProperty and ActuatableProperty</td>
+            <td>Includes usage of deprecated sub-classes `ObservableProperty` and `ActuatableProperty`</td>
           </tr>
           <tr>
             <td>
@@ -501,17 +500,18 @@ <h2>Analysis of usage in datasets</h2>
             </td>
             <td></td>
             <td></td>
-            <td>`Execution` is considered to be abstract. Individual Executions SHOULD be typed with one of the
-              (concrete) sub-classes: `Actuation`, `Observation` or `Sampling`. </td>
+            <td>`Execution` is considered to be abstract  so is not used directly. 
+              Individual Executions are typed with one of the              (concrete) sub-classes: 
+              `Actuation`, `Observation` or `Sampling`. </td>
           </tr>
           <tr>
             <td>
               <a href="https://www.w3.org/TR/vocab-ssn-2023#dfn-sosa-ExecutionCollection">sosa:ExecutionCollection</a>
             </td>
             <td></td>
             <td></td>
-            <td>`ExecutionCollection` is considered to be abstract.
-              Individual ExecutionCollections SHOULD be typed with one of the (concrete) sub-classes:
+            <td>`ExecutionCollection` is considered to be abstract so is not used directly.
+              Individual ExecutionCollections are typed with one of the (concrete) sub-classes:
               `ActuationCollection`, `ObservationCollection` or `SamplingCollection`. </td>
           </tr>
           <tr>
@@ -558,9 +558,8 @@ <h2>Analysis of usage in datasets</h2>
             </td>
             <td></td>
             <td></td>
-            <td>`madeBySystem` and `madeExecution` are considered to be abstract.
-              Applications SHOULD use a concrete sub-property: `madeByActuator`, `madeBySensor` or `madeBySampler` and
-              `madeActuation` `madeObservation` `madeSampling`</td>
+            <td>`madeBySystem` and `madeExecution` are considered to be abstract so are not used directly.
+              Applications use a concrete sub-property: `madeByActuator`, `madeBySensor` or `madeBySampler` and              `madeActuation` `madeObservation` `madeSampling`</td>
           </tr>
           <tr>
             <td>
@@ -594,8 +593,9 @@ <h2>Analysis of usage in datasets</h2>
             </td>
             <td></td>
             <td></td>
-            <td>`Asset` is considered to be abstract.
-              Individual Assets SHOULD be typed with one of the (concrete) sub-classes: `System` or `Platform`.</td>
+            <td>`Asset` is considered to be abstract  so is not used directly.
+              Individual Assets are typed with one of the (concrete) sub-classes: 
+              `System` or `Platform`.</td>
           </tr>
           <tr>
             <td>