docs: fix 2 comment typos in dominate/dom_tag.py (thie -> the, presense -> presence)

README.md

@@ -249,7 +249,7 @@ print(header)
 <div id="header"></div>
 ```
 
-Or the children of a tag though an array-line interface:
+Or the children of a tag though an array-like interface:
 
 ```python
 header = div('Test')

dominate/dom_tag.py

@@ -52,9 +52,9 @@
 # sort of bleed into one another...
 
 # The solution is to use a ContextVar - which provides async context local storage.
-# We use this to store a unique ID for each async context. We then use thie ID to
+# We use this to store a unique ID for each async context. We then use the ID to
 # form the key (in _get_thread_context) that is used to index the _with_context defaultdict.
-# The presense of this key ensures that each async context has its own stack and doesn't conflict.
+# The presence of this key ensures that each async context has its own stack and doesn't conflict.
 async_context_id = ContextVar('async_context_id', default = None)
 
 def _get_async_context_id():