Update PROPOSALS.md

Co-authored-by: Julian Ospald <[email protected]>

Author: AndreasPK

PROPOSALS.md

@@ -136,7 +136,7 @@ the request, then it automatically passes.
 ### `base`: Bug fixes
 
 The CLC votes on concrete changes to `base` and not designs. If a change to `base`
-has been accepted but is later found the be faulty in implementation or design
+has been accepted but is later found to be faulty in implementation or design
 fixing it will require its own CLC proposal.
 
 Similarly fixes to existing bugs, no matter how trivial, will require