docs: fix typos in cot binding

Fixed a few typos in the cot binding document.

Change-Id: I043187b3f4b516db944e82569307834df2c3c72a
Signed-off-by: sah01 <sahil@arm.com>
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
diff --git a/docs/components/cot-binding.rst b/docs/components/cot-binding.rst
index 1d31e3d..5d9acdf 100644
--- a/docs/components/cot-binding.rst
+++ b/docs/components/cot-binding.rst
@@ -108,7 +108,7 @@
                      Usage:
 
                      This property provides the Object ID of public key
-                     provided in the certificate which the help of which
+                     provided in the certificate with the help of which
                      public key information can be extracted.
 
                      Value type: <string>
@@ -122,7 +122,7 @@
                      Usage:
 
                      This property provides the Object ID of hash provided in
-                     the certificate which the help of which hash information
+                     the certificate with the help of which hash information
                      can be extracted.
 
                      Value type: <string>