[docs] Hook up new symbols
diff --git a/docs/harfbuzz-docs.xml b/docs/harfbuzz-docs.xml
index 9452a92..3488ccb 100644
--- a/docs/harfbuzz-docs.xml
+++ b/docs/harfbuzz-docs.xml
@@ -104,8 +104,12 @@
         <title>API Index</title>
         <xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include>
       </index>
-      <index id="api-index-0-9-2" role="0.9.2">
-        <title>Index of new symbols in 0.9.2</title>
+      <index id="deprecated-api-index" role="deprecated">
+        <title>Index of deprecated API</title>
+        <xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include>
+      </index>
+
+      <index id="api-index-0-9-2" role="0.9.2"><title>Index of new symbols in 0.9.2</title>
         <xi:include href="xml/api-index-0.9.2.xml"><xi:fallback /></xi:include>
       </index>
       <index id="api-index-0-9-5" role="0.9.5">
@@ -184,6 +188,10 @@
         <title>Index of new symbols in 1.3.3</title>
         <xi:include href="xml/api-index-1.3.3.xml"><xi:fallback /></xi:include>
       </index>
+      <index id="api-index-1-4-0" role="1.4.0">
+        <title>Index of new symbols in 1.4.0</title>
+        <xi:include href="xml/api-index-1.4.0.xml"><xi:fallback /></xi:include>
+      </index>
       <index id="api-index-1-4-2" role="1.4.2">
         <title>Index of new symbols in 1.4.2</title>
         <xi:include href="xml/api-index-1.4.2.xml"><xi:fallback /></xi:include>
@@ -200,9 +208,37 @@
         <title>Index of new symbols in 1.6.0</title>
         <xi:include href="xml/api-index-1.6.0.xml"><xi:fallback /></xi:include>
       </index>
-      <index id="deprecated-api-index" role="deprecated">
-        <title>Index of deprecated API</title>
-        <xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include>
+      <index id="api-index-1-7-5" role="1.7.5">
+        <title>Index of new symbols in 1.7.5</title>
+        <xi:include href="xml/api-index-1.7.5.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-1-7-7" role="1.7.7">
+        <title>Index of new symbols in 1.7.7</title>
+        <xi:include href="xml/api-index-1.7.7.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-1-8-0" role="1.8.0">
+        <title>Index of new symbols in 1.8.0</title>
+        <xi:include href="xml/api-index-1.8.0.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-1-8-1" role="1.8.1">
+        <title>Index of new symbols in 1.8.1</title>
+        <xi:include href="xml/api-index-1.8.1.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-1-8-5" role="1.8.5">
+        <title>Index of new symbols in 1.8.5</title>
+        <xi:include href="xml/api-index-1.8.5.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-1-8-6" role="1.8.6">
+        <title>Index of new symbols in 1.8.6</title>
+        <xi:include href="xml/api-index-1.8.6.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-1-9-0" role="1.9.0">
+        <title>Index of new symbols in 1.9.0</title>
+        <xi:include href="xml/api-index-1.9.0.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-2-0-0" role="2.0.0">
+        <title>Index of new symbols in 2.0.0</title>
+        <xi:include href="xml/api-index-2.0.0.xml"><xi:fallback /></xi:include>
       </index>
 
       <xi:include href="xml/annotation-glossary.xml"><xi:fallback /></xi:include>