Tweak 'Renames in Git Explained'

content/post/renames-in-git-explained.md

@@ -48,7 +48,7 @@ $ git hash-object -w foo.txt
 257cc5642cb1a054f08cc83f2d943e56fd3ebe99
 ```
 
-You will now find an object in the store at:
+You will now find an object in the store:
 
 ```bash
 $ find .git/objects -type f
@@ -64,7 +64,7 @@ $ git hash-object -w bar.txt
 257cc5642cb1a054f08cc83f2d943e56fd3ebe99
 ```
 
-That's right, nothing changed, this makes sense as we're only adding the content
+That's right, nothing changed! This makes sense as we're only adding the content
 to the object store! So how does Git remember the file names?
 
 ## Filenames are part of tree objects
@@ -75,9 +75,11 @@ worktree, you will have a tree object. A tree object's content looks like:
 
 ```code
 <mode> <type> <hash>    <name>
+...
+<mode> <type> <hash>    <name>
 ```
 
-You can create this one for yourself by doing:
+You can create a tree object yourself by doing:
 
 ```bash
 $ git update-index --add --cacheinfo 100644 \
@@ -101,8 +103,8 @@ pointing too as well as some meta data.
 ## Renaming
 
 Armed with the knowledge about trees and blobs, it should be fairly easy to
-understand what happens if you rename a file. To make not make it easier to
+understand what happens if you rename a file. To make it easier to understand,
-understand, consider a simple example: we just rename a file at the top level.
+consider a simple example: we just rename a file at the top level.
 
 > Note: more complex examples are just more time consuming to explain, but
 > not to understand. The same principles apply.
@@ -111,8 +113,9 @@ In case of such a rename, when you commit this rename, your repository will
 be impacted as follows:
 
 - The blob representing the file remains unchanged.
-- The top level tree object changes as it now has a different file name.
+- The top level tree object changes as well because the filename associated with
-- The commit object will point to the new tree. (It's parent will point to the
+  the blob is different.
+- The commit object will point to the new tree. (Its parent will point to the
   old tree.)
 
 Nowhere is there any special mention of a rename occuring. Remember, we're just
@@ -124,12 +127,14 @@ However, that does not mean you lose your history when you rename a file.
 
 ### How to see history of a renamed file
 
-Git might not store information on renames in it repository but it does come
+Git might not store information on renames in the repository but it does come
-packed with an algorithm that detects file renames. For every add/delete pair
+packed with an algorithm that detects file renames. The way it works is that for
-added to the index, it determines how alike the paired files are. If they are
+every add/delete pair added to the index, it tries to determine a rename
-at least 50% alike, it considered the pair to have been a rename. If there
+candidate for every deleted file. It does this by comparing how similar the
-are multiple possibilities it takes the highest percentage one. If multipe files
+paired files are. If they are at least 50% similar, it considered the pair to
-have the same percentage, it picks one depending on the implementation.
+have been a rename. If there are multiple rename candidates for one file, it
+takes the one with the highest similarity percentage. If multipe files have the
+same percentage, it picks one depending on the implementation.
 
 > **Note**: I believe, but am not sure, it basicaly takes the first
 > alphabeticaly match in the last case.
@@ -146,7 +151,7 @@ You can also turn off rename detection by doing `--no-renames`
 ### Rename best practice
 
 Because of the treshold and the cheapness of commits, it is recommended that
-when you rename a file/directory. You commit those renames first, before you
+when you rename a file/directory, you commit those renames first, before you
 continue working on the renamed file. This basically makes it so you can use
 a treshold of 100% all the time.