Update README.md

Author: kelvich

README.md

@@ -5,15 +5,15 @@ Postgres extension that does input tokenization using OpenAI's tiktoken.
 ## Usage
 
 ```sql
-pg_tiktoken=# create extension pg_tiktoken;
+db=> create extension pg_tiktoken;
 CREATE EXTENSION
-pg_tiktoken=# select tiktoken_count('p50k_edit', 'A long time ago in a galaxy far, far away');
+db=> select tiktoken_count('p50k_edit', 'A long time ago in a galaxy far, far away');
  tiktoken_count 
 ----------------
              11
 (1 row)
 
-pg_tiktoken=# select tiktoken_encode('cl100k_base', 'A long time ago in a galaxy far, far away');
+db=> select tiktoken_encode('cl100k_base', 'A long time ago in a galaxy far, far away');
                   tiktoken_encode                   
 ----------------------------------------------------
  {32,1317,892,4227,304,264,34261,3117,11,3117,3201}
@@ -30,14 +30,14 @@ pg_tiktoken=# select tiktoken_encode('cl100k_base', 'A long time ago in a galaxy
 | `p50k_edit`             | Use for edit models like `text-davinci-edit-001`, `code-davinci-edit-001` |
 | `r50k_base` (or `gpt2`) | GPT-3 models like `davinci`                         |
 
-`tiktoken_count` and `tiktoken_encode` accept both encoding name and OpenAI model name as a first argument.
+`tiktoken_count` and `tiktoken_encode` functions accept both encoding name and OpenAI model name as a first argument.
 
 
 ## Installation
 
 Assuming that rust toolchain is already istalled:
 
-```
+```sh
 # install pgx
 cargo install --locked cargo-pgx
 cargo pgx init
@@ -49,5 +49,5 @@ cargo pgx install
 
 ## Kudos
 
-https://github.com/zurawiki/tiktoken-rs
-https://github.com/openai/tiktoken
+- https://github.com/zurawiki/tiktoken-rs
+- https://github.com/openai/tiktoken