Update index.md

Add missing space, fix named link to not break rendering.

docs/index.md

@@ -392,7 +392,7 @@ Finally, the Health Wallet asks the user if they want to save any/all of the sup
     
     FHIR API Example Approach
     
-    <a name="healthwalletissuevc-operation"/>
+    <a name="healthwalletissuevc-operation"></a>
     #### `$HealthWallet.issueVc` Operation
     
     A Health Wallet can `POST /Patient/:id/$HealthWallet.issueVc` to a FHIR-enabled issuer to request the generation of a specific type of Health Card. The body of the POST looks like: