Update README.md

README.md

@@ -34,10 +34,10 @@ Details for the next session:
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 | 10:00 | [Introduction](/uploads/ccbce60d8d17dd5e9d7949d91cc20a57/introduction.pdf)             | Mihai Lefter      | Welcome, version control introduction |
 | 10:30 | [Git basics](/uploads/5c35a9ecd72033b42ef55b602f6cb548/20170906_-_git-course_-_git-basics.pdf) | Wibowo Arindrarto | Basic Git command line flow |
-| 11:15 | [Practical](/uploads/eb2e001db4f605a343e19d23d40e754f/basics_handouts.pdf)             |                   |                           |
+| 11:15 | [Practical](/uploads/d56ee5edaeca415c5430b385750a89de/basics_handouts.pdf)             |                   |                           |
 | 12:00 | Lunch                                                                                  |                   |                           |
-| 13:00 | [Collaboration: remote repositories](/uploads/e1239f626e6c32a6c0bd915a0dc716ad/remotes.pdf)   | Jonathan Vis   | Sharing and collaborating via remotes |
-| 13:45 | [Practical](/uploads/dff8ad1b0f947d5866acdcdc70f3d673/remotes_handouts.pdf)             |                   |                           |
+| 13:00 | [Collaboration: remote repositories](/uploads/a189f6a373afac0509d96812d7a2b49a/remotes.pdf)   | Jonathan Vis   | Sharing and collaborating via remotes |
+| 13:45 | [Practical](/uploads/286d7abb800c6f3f1540a49a6aefd25b/remotes_handouts.pdf)             |                   |                           |
 | 14:15 | Break                                                                                  |                   |                           |
 | 14:30 | [Collaboration: combining changes by merging](/uploads/1bc6dc39f8c0234264b3efbbd596ccbe/merging.pdf)  | Mihai Lefter   | Commit graph, merging, resolving merge conflicts |
 | 15:15 | [Practical](/uploads/9455ef406dfeb0e3c365c015965cd899/merging_handouts.pdf)            |                   |                           |