Apply suggestions from code review

Co-authored-by: Magnus Henoch <magnus.henoch@gmail.com>

eeps/eep-0068.md

@@ -105,7 +105,7 @@ and others the same data produce a stream of events that can later
 be processed to extract values.
 
 The first kind, which we'll call here value-based, is generally simpler,
-usually more efficient, and more convient to use. The second one offers
+usually more efficient, and more convenient to use. The second one offers
 unique advantages in specific use-cases: for example, where data
 can't fully fit into memory.
 
@@ -181,9 +181,9 @@ features seen in open-source JSON libraries:
 
 Furthermore, this allows the user to only retain parts of the data structure
 to achieve results similar to using a streaming SAX-like parser for data
-that does't fully fit into memory.
+that doesn't fully fit into memory.
 
-All the callbacks are optional and have a default value correspnding to the
+All the callbacks are optional and have a default value corresponding to the
 "simple" API behaviour and using lists as accumulators.
 
 ### Incomplete data parsing