doc: Fix typos

src/crypto/sha256_arm_shani.cpp

@@ -62,7 +62,7 @@ void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks)
         MSG3 = vreinterpretq_u32_u8(vrev32q_u8(vld1q_u8(chunk + 48)));
         chunk += 64;
 
-        // Original implemenation preloaded message and constant addition which was 1-3% slower.
+        // Original implementation preloaded message and constant addition which was 1-3% slower.
         // Now included as first step in quad round code saving one Q Neon register
         // "TMP0 = vaddq_u32(MSG0, vld1q_u32(&K[0]));"
 

src/node/blockstorage.cpp

@@ -295,7 +295,7 @@ bool BlockManager::LoadBlockIndex(
             // them from the background chainstate's setBlockIndexCandidates set. This
             // does mean that some blocks which are not technically assumed-valid
             // (later blocks on a fork beginning before the first assumed-valid block)
-            // might not get added to the the background chainstate, but this is ok,
+            // might not get added to the background chainstate, but this is ok,
             // because they will still be attached to the active chainstate if they
             // actually contain more work.
             //

src/wallet/test/wallet_tests.cpp

@@ -426,7 +426,7 @@ BOOST_AUTO_TEST_CASE(LoadReceiveRequests)
 
 // Test some watch-only LegacyScriptPubKeyMan methods by the procedure of loading (LoadWatchOnly),
 // checking (HaveWatchOnly), getting (GetWatchPubKey) and removing (RemoveWatchOnly) a
-// given PubKey, resp. its corresponding P2PK Script. Results of the the impact on
+// given PubKey, resp. its corresponding P2PK Script. Results of the impact on
 // the address -> PubKey map is dependent on whether the PubKey is a point on the curve
 static void TestWatchOnlyPubKey(LegacyScriptPubKeyMan* spk_man, const CPubKey& add_pubkey)
 {