one more pass over the changelog

ChangeLog

@@ -9,7 +9,7 @@ Changes in version 0.4.7.1-alpha - 2021-09-17
       guard relays for use as the middle hop in all onion circuits.
       These relays are kept in place for a randomized duration averaging
       1 week. This mitigates guard discovery attacks against clients and
-      short-lived onion services such as OnionShare. Long- lived onion
+      short-lived onion services such as OnionShare. Long-lived onion
       services that need high security should still use the Vanguards
       addon (https://github.com/mikeperry-tor/vanguards). Closes ticket
       40363; implements proposal 333.
@@ -65,7 +65,7 @@ Changes in version 0.4.7.1-alpha - 2021-09-17
   o Minor bugfixes (logging, relay):
     - Add spaces between the "and" when logging the "Your server has not
-      managed to confirm reachability for its" on dual-stack relays
+      managed to confirm reachability for its" on dual-stack relays.
       Fixes bug 40453; bugfix on 0.4.5.1-alpha. Patch by Neel Chauhan.
   o Minor bugfixes (onion service):
@@ -76,10 +76,9 @@ Changes in version 0.4.7.1-alpha - 2021-09-17
       selection. Fixes bug 40434; bugfix on 0.2.0.13-alpha.
   o Minor bugfixes (statistics):
-    - Fix a fencepost issue when we check stability_last_downrated that
-      had caused us to call where we call rep_hist_downrate_old_runs()
-      twice. Fixes bug 40394; bugfix on 0.2.0.5-alpha. Patch by
-      Neel Chauhan.
+    - Fix a fencepost issue when we check stability_last_downrated where
+      we called rep_hist_downrate_old_runs() twice. Fixes bug 40394;
+      bugfix on 0.2.0.5-alpha. Patch by Neel Chauhan.
   o Minor bugfixes (tests):
     - Fix a bug that prevented some tests from running with the correct
@@ -89,8 +88,8 @@ Changes in version 0.4.7.1-alpha - 2021-09-17
     - Add links to original tor design paper and anonbib to
       docs/HACKING/README.1st.md. Closes ticket 33742. Patch from
       Emily Bones.
-    - Describe the "fingerprint-ed25519" file the tor.1 man page. Fixes
-      bug 40467; bugfix on 0.4.3.1-alpha. Patch by Neel Chauhan.
+    - Describe the "fingerprint-ed25519" file in the tor.1 man page.
+      Fixes bug 40467; bugfix on 0.4.3.1-alpha. Patch by Neel Chauhan.
 Changes in version 0.4.6.7 - 2021-08-16