docs: Proofread and updated snippets (#1243)

qdrant-landing/content/documentation/guides/administration.md

@@ -13,6 +13,7 @@ Qdrant exposes administration tools which enable to modify at runtime the behavi
 
 A locking API enables users to restrict the possible operations on a qdrant process.
 It is important to mention that:
+
 - The configuration is not persistent therefore it is necessary to lock again following a restart.
 - Locking applies to a single node only. It is necessary to call lock on all the desired nodes in a distributed deployment setup.
 

qdrant-landing/content/documentation/guides/distributed_deployment.md

@@ -535,8 +535,7 @@ client.upsert(
 ```
 
 ```typescript
-
-client.upsertPoints("{collection_name}", {
+client.upsert("{collection_name}", {
     points: [
         {
             id: 1111,

qdrant-landing/content/documentation/guides/optimize.md

@@ -10,6 +10,7 @@ aliases:
 Different use cases require different balances between memory usage, search speed, and precision. Qdrant is designed to be flexible and customizable so you can tune it to your specific needs. 
 
 This guide will walk you three main optimization strategies:
+
 - High Speed Search & Low Memory Usage
 - High Precision & Low Memory Usage
 - High Precision & High Speed Search