Small doc fixes (#249)

Author: swallez

docs/docset.yml

@@ -5,3 +5,4 @@ toc:
   - toc: reference
 subs:
   es:   "Elasticsearch"
+  version: "9.0.0-alpha.1"

docs/reference/index.md

@@ -31,7 +31,7 @@ The Elasticsearch Rust client is forward compatible; meaning that the client sup
 
 ## Create a client [_create_a_client]
 
-To create a client to make API calls to Elasticsearch running on `\https://localhost:9200`
+To create a client to make API calls to Elasticsearch running on `https://localhost:9200`
 
 ```rust
 let client = Elasticsearch::default();

docs/reference/installation.md

@@ -7,15 +7,15 @@ mapped_pages:
 
 Add `elasticsearch` crate and version to Cargo.toml. Choose the version that is compatible with the version of {{es}} you are using:
 
-```toml
+```toml subs=true
 [dependencies]
-elasticsearch = "8.7.0-alpha.1"
+elasticsearch = "{{version}}"
 ```
 
 The following *optional* dependencies may also be useful to create requests and read responses:
 
 ```toml
-serde = "~1"
-serde_json = "~1"
+serde = "1"
+serde_json = "1"
 ```