Fix typos

3 files changed, 7 insertions, 7 deletions

diff --git a/README.md b/README.md
index bec03fe..3271d64 100644
--- a/README.md
+++ b/README.md
@@ -93,7 +93,7 @@ use one of the two following strategies to balance cache freshness and performan
 
 **Define exactly how long to keep responses:**
 
-Use the `expire_after` parameter to set a fixed expiration time for all responses.
+Use the `expire_after` parameter to set a fixed expiration time for all responses:
 ```python
 from requests_cache import CachedSession
 from datetime import timedelta
@@ -101,7 +101,7 @@ from datetime import timedelta
 # Keep responses for 360 seconds
 session = CachedSession('demo_cache', expire_after=360)
 
-# Use timedelta objects for more precise control
+# Or use timedelta objects to specify other units of time
 session = CachedSession('demo_cache', expire_after=timedelta(hours=1))
 ```
 See [Expiration](https://requests-cache.readthedocs.io/en/stable/user_guide/expiration.html) for
@@ -110,14 +110,14 @@ more features and settings.
 **Use Cache-Control headers:**
 
 Use the `cache_control` parameter to enable automatic expiration based on `Cache-Control` and other
-standard HTTP headers sent by the server.
+standard HTTP headers sent by the server:
 ```python
 from requests_cache import CachedSession
 
 session = CachedSession('demo_cache', cache_control=True)
 ```
-See [Headers](https://requests-cache.readthedocs.io/en/stable/user_guide/headers.html) for more
-details.
+See [Cache Headers](https://requests-cache.readthedocs.io/en/stable/user_guide/headers.html)
+for more details.
 
 
 ### Settings
diff --git a/docs/user_guide/expiration.md b/docs/user_guide/expiration.md
index 4c9fc88..d4b2fa5 100644
--- a/docs/user_guide/expiration.md
+++ b/docs/user_guide/expiration.md
@@ -20,7 +20,7 @@ request, the following order of precedence is used:
 2. Cache-Control request headers
 3. Per-request expiration (`expire_after` argument for {py:meth}`.CachedSession.request`)
 4. Per-URL expiration (`urls_expire_after` argument for {py:class}`.CachedSession`)
-5. Per-session expiration (`expire_after` argument for {py:class}`.CacheBackend`)
+5. Per-session expiration (`expire_after` argument for {py:class}`.CachedSession`)
 
 ## Expiration Values
 `expire_after` can be any of the following time values:
diff --git a/requests_cache/backends/sqlite.py b/requests_cache/backends/sqlite.py
index 2b03d4a..72b62da 100644
--- a/requests_cache/backends/sqlite.py
+++ b/requests_cache/backends/sqlite.py
@@ -99,7 +99,7 @@ class SQLiteCache(BaseCache):
         self.redirects.vacuum()
 
     def _delete_expired(self):
-        """A more efficient implementation deleting expired responses in SQL"""
+        """A more efficient implementation of deleting expired responses in SQL"""
         with self.responses.connection(commit=True) as con:
             con.execute(
                 f'DELETE FROM {self.responses.table_name} WHERE expires <= ?', (round(time()),)