clippy fixes

Author: nyurik

README.md

@@ -40,7 +40,7 @@ sqlite> SELECT md5_hex('Hello world!');
 
 ### PHP
 
-To load the extension from PHP, store `libsqlite_hashes.so` in your SQLite extensions folder. If you don't have any extensions yet, you can determine your SQLite extensions folder by defining the `sqlite3.extension_dir` variable as the filepath to the extensions directory in your `php.ini` file.
+To load the extension from PHP, store `libsqlite_hashes.so` in your `SQLite` extensions folder. If you don't have any extensions yet, you can determine your `SQLite` extensions folder by defining the `sqlite3.extension_dir` variable as the filepath to the extensions directory in your `php.ini` file.
 
 ```ini
 sqlite3.extension_dir = /path/to/sqlite/extensions
@@ -60,7 +60,7 @@ sqlite3.defensive => On => On
 sqlite3.extension_dir => /var/www/extensions/ => /var/www/extensions/
 ```
 
-Now, make sure to always load the extension by running `SQLite3::loadExtension('libsqlite_hashes.so');` (remember to include the correct file extension according to your Operating System, e.g., `.so` for Linux, `.dll` for Windows, and `.dylib` for MacOS) in each project you intend to use sqlite hash functions.
+Now, make sure to always load the extension by running `SQLite3::loadExtension('libsqlite_hashes.so');` (remember to include the correct file extension according to your Operating System, e.g., `.so` for Linux, `.dll` for Windows, and `.dylib` for macOS) in each project you intend to use sqlite hash functions.
 
 For instance, the following code snippet demonstrate the minimum required code to run SHA256 in a string "password":
 
@@ -71,7 +71,7 @@ $db->loadExtension('libsqlite_hashes.so');
 echo $db->querySingle("SELECT hex(sha256('password'))");
 ```
 
-Warning: According to <https://github.com/nyurik/sqlite-hashes/issues/71>, PHP 7 fails to load the extension with or without specifying the file extension as it ends up looking for a file with a double extension (e.g., libsqlite_hashes.so.so). Therefore, we recommend using it with PHP 8.
+Warning: According to <https://github.com/nyurik/sqlite-hashes/issues/71>, PHP 7 fails to load the extension with or without specifying the file extension as it ends up looking for a file with a double extension (e.g., `libsqlite_hashes.so.so`). Therefore, we recommend using it with PHP 8.
 
 ### Rust library