docs: Spelling and grammar fixes

yamllint/linter.py

@@ -122,7 +122,7 @@ def get_cosmetic_problems(buffer, conf, filepath):
                         if id in self.all_rules:
                             self.rules.add(id)
 
-    # Use a cache to store problems and flush it only when a end of line is
+    # Use a cache to store problems and flush it only when an end of line is
     # found. This allows the use of yamllint directive to disable some rules on
     # some lines.
     cache = []

yamllint/rules/truthy.py

@@ -14,7 +14,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 """
-Use this rule to forbid non-explictly typed truthy values other than allowed
+Use this rule to forbid non-explicitly typed truthy values other than allowed
 ones (by default: ``true`` and ``false``), for example ``YES`` or ``off``.
 
 This can be useful to prevent surprises from YAML parsers transforming