use h2 for top-level header

tchaikov · tchaikov · commit a250feea01b7 · 2024-07-13T12:24:58.000+08:00
otherwise javadoc complains:

```
[ERROR] /tmp/tmp3xdp27n9/4c8eec7e8183f75869e1154d4ed490149e848e80/core/src/main/java/com/datastax/oss/driver/api/core/paging/OffsetPager.java:47: error: headi
ng used out of sequence: &lt;H3&gt;, compared to implicit preceding heading: &lt;H1&gt;
[ERROR]  * &lt;h3&gt;Performance considerations&lt;/h3&gt;
[ERROR]    ^
```

Signed-off-by: Kefu Chai &lt;kefu.chai@scylladb.com&gt;
diff --git a/core/src/main/java/com/datastax/oss/driver/api/core/paging/OffsetPager.java b/core/src/main/java/com/datastax/oss/driver/api/core/paging/OffsetPager.java
@@ -46,7 +46,7 @@
  * a reasonable trade-off if the cardinality stays low. This class provides a way to emulate this
  * behavior on the client side.
  *
- * <h3>Performance considerations</h3>
+ * <h2>Performance considerations</h2>
  *
  * For each page that you want to retrieve:
  *
@@ -71,7 +71,7 @@
  * OffsetPager.Page&lt;Row&gt; page5 = pager.getPage(rs, 5);
  * </pre>
  *
- * <h3>Establishing application-level guardrails</h3>
+ * <h2>Establishing application-level guardrails</h2>
  *
  * Linear performance should be fine for the values typically encountered in real-world
  * applications: for example, if the page size is 25 and users never go past page 10, the worst case

Original file line number	Diff line number	Diff line change
`@@ -46,7 +46,7 @@`
`46`	`46`	`* a reasonable trade-off if the cardinality stays low. This class provides a way to emulate this`
`47`	`47`	`* behavior on the client side.`
`48`	`48`	`*`
`49`		`- * <h3>Performance considerations</h3>`
	`49`	`+ * <h2>Performance considerations</h2>`
`50`	`50`	`*`
`51`	`51`	`* For each page that you want to retrieve:`
`52`	`52`	`*`
`@@ -71,7 +71,7 @@`
`71`	`71`	`* OffsetPager.Page<Row> page5 = pager.getPage(rs, 5);`
`72`	`72`	`* </pre>`
`73`	`73`	`*`
`74`		`- * <h3>Establishing application-level guardrails</h3>`
	`74`	`+ * <h2>Establishing application-level guardrails</h2>`
`75`	`75`	`*`
`76`	`76`	`* Linear performance should be fine for the values typically encountered in real-world`
`77`	`77`	`* applications: for example, if the page size is 25 and users never go past page 10, the worst case`