Add 2.0 Breaking Changes

_opensearch/pipeline-agg.md

@@ -35,6 +35,9 @@ You can also specify the following additional parameters:
 - `gap_policy`: Real-world data can contain gaps or null values. You can specify the policy to deal with such missing data with the `gap_policy` property. You can either set the `gap_policy` property to `skip` to skip the missing data and continue from the next available value, or `insert_zeros` to replace the missing values with zero and continue running.
 - `format`: The type of format for the output value. For example, `yyyy-MM-dd` for a date value.
 
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+A change. 
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 ## Quick example
 
 To sum all the buckets returned by the `sum_total_memory` aggregation:

_opensearch/rest-api/alias.md

@@ -5,6 +5,8 @@ parent: REST API reference
 nav_order: 20
 ---
 
+Another change. 
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 # Alias
 Introduced 1.0
 {: .label .label-purple }