Update-Guide.md

-Synchronize updates in this repository by pulling them from the remote:
+# Updating the annotation environment
+
+* Synchronize updates in this repository by pulling them from the remote.
   ``` bash
+  user@host:~$ cd $HOME/repo/blocks
   user@host:~/repo/blocks$ git pull
   ```
+* Synchronize updates in the environment's software dependencies.
+  ``` bash
+  user@host:~/repo/blocks$ conda deactivate
+  user@host:~/repo/blocks$ conda env update --file annotation.yml
+  user@host:~/repo/blocks$ conda activate annotation
+  ```
 
 # Pulling from git when your local version has been modified
 Here's a typical scenario: