docs: fix typos in test circuits chapter text (#522)

Author: magic-peach

docs/chapter7/3testcircuits.md

@@ -18,7 +18,7 @@ The test creator provides an intuitive UI to create tests.
  - Add another test to the group by clicking `+` icon below
  - Add another group by clicking `New Group`
 
-For sequential tests, clock is ticked between each Group. For combinational tests, Groups are just a logical seperation between different types of tests.
+For sequential tests, clock is ticked between each Group. For combinational tests, Groups are just a logical separation between different types of tests.
 
 Alternatively, you can also export the created test as CSV and edit it. You can import this CSV to attach by clicking `Import from CSV`
 

docs/chapter7/3testcircuits.mdx

@@ -27,9 +27,9 @@ The test creator provides an intuitive UI to create tests.
 - Add another test to the group by clicking `+` icon below
 - Add another group by clicking `New Group`
 
-For sequential tests, clock is ticked between each Group. For combinational tests, Groups are just a logical seperation between different types of tests.
+For sequential tests, clock is ticked between each Group. For combinational tests, Groups are just a logical separation between different types of tests.
 
-Alternatively, you can also export the created test as CSV and edit it. You can import this CSV to attch by clicking `Import from CSV`
+Alternatively, you can also export the created test as CSV and edit it. You can import this CSV to attach by clicking `Import from CSV`
 
 Finally,