fix typos in readme (#825)

Author: Stebalien

README.md

@@ -108,7 +108,7 @@ This improvement protocol helps achieve that objective for all members of the Fi
 |[0068](https://github.com/filecoin-project/FIPs/blob/master/FRCs/frc-0068.md)   | Deal-Making Between SPs and FVM Smart Contracts | FRC  | @aashidham, @raulk, @skottie86, @jennijuju, @nonsense, @shrenujbansal  | Draft  |
 |[0069](https://github.com/filecoin-project/FIPs/blob/master/FRCs/frc-0069.md)   | Piece Multihash and v2 Piece CID | FRC  | @aschmahmann, @ribasushi  | Draft  |
 |[0070](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0070.md)   | Allow SPs to move partitions between deadlines  | FIP  |Steven Li (@steven004), Alan Xu (@zhiqiangxu), Mike Li (@hunjixin), Alex North (@anorth), Nicola (@nicola)| Draft  |
-|[0071](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0071.md )   | Deterministic State Access (IPLD Reachability)  | FIP  |@stebalien| Draft  |
+|[0071](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0071.md)   | Deterministic State Access (IPLD Reachability)  | FIP  |@stebalien| Draft  |
 |[0072](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0072.md)   | Improved event syscall API  | FIP  | @fridrik01, @Stebalien  | Draft  |
-|[0073](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0073.md)   | : Remove beneficiary from the self_destruct syscall | FIP  | @Stebalien | Draft  |
+|[0073](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0073.md)   | Remove beneficiary from the self_destruct syscall | FIP  | @Stebalien | Draft  |
 |[0075](https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0075.md)   | Improvements to the FVM randomness syscalls  | FIP  | @arajasek, @Stebalien  | Draft  |