Fix typos in docs (#2261)

Signed-off-by: vuittont60 <81072379+vuittont60@users.noreply.github.com>

RELEASES.md

@@ -723,7 +723,7 @@ This version is backwards compatible to [v1.10.0](https://github.com/ava-labs/av
 - Add workflow to mark stale issues and PRs by @joshua-kim in https://github.com/ava-labs/avalanchego/pull/1443
 - Enforce inlining functions with a single error return in `require.NoError` by @dhrubabasu in https://github.com/ava-labs/avalanchego/pull/1500
 - `x/sync` / `x/merkledb` -- add `SyncableDB` interface by @danlaine in https://github.com/ava-labs/avalanchego/pull/1555
-- Rename beacon to boostrapper, define bootstrappers in JSON file for cross-language compatiblity by @gyuho in https://github.com/ava-labs/avalanchego/pull/1439
+- Rename beacon to boostrapper, define bootstrappers in JSON file for cross-language compatibility by @gyuho in https://github.com/ava-labs/avalanchego/pull/1439
 - add P-chain height indexing by @dhrubabasu in https://github.com/ava-labs/avalanchego/pull/1447
 - Add P-chain `GetBlockByHeight` API method by @dhrubabasu in https://github.com/ava-labs/avalanchego/pull/1448
 - `x/sync` -- use for sending Range Proofs by @danlaine in https://github.com/ava-labs/avalanchego/pull/1537

x/merkledb/README.md

@@ -76,8 +76,8 @@ The node serialization format is as follows:
 
 Where:
 * `Value existence flag` is `1` if this node has a value, otherwise `0`.
-* `Value length` is the length of the value, if it exists (i.e. if `Value existince flag` is `1`.) Otherwise not serialized.
-* `Value` is the value, if it exists (i.e. if `Value existince flag` is `1`.) Otherwise not serialized.
+* `Value length` is the length of the value, if it exists (i.e. if `Value existence flag` is `1`.) Otherwise not serialized.
+* `Value` is the value, if it exists (i.e. if `Value existence flag` is `1`.) Otherwise not serialized.
 * `Number of children` is the number of children this node has.
 * `Child index` is the index of a child node within the list of the node's children.
 * `Child compressed key length` is the length of the child node's compressed key.
@@ -197,8 +197,8 @@ Where:
 * `Child index` is the index of a child node within the list of the node's children.
 * `Child ID` is the child node's ID.
 * `Value existence flag` is `1` if this node has a value, otherwise `0`.
-* `Value length` is the length of the value, if it exists (i.e. if `Value existince flag` is `1`.) Otherwise not serialized.
-* `Value` is the value, if it exists (i.e. if `Value existince flag` is `1`.) Otherwise not serialized.
+* `Value length` is the length of the value, if it exists (i.e. if `Value existence flag` is `1`.) Otherwise not serialized.
+* `Value` is the value, if it exists (i.e. if `Value existence flag` is `1`.) Otherwise not serialized.
 * `Key length` is the number of nibbles in this node's key.
 * `Key` is the node's key.