Fixing some typos and unclear points in tutorials

current-year/docs/ssh.md

@@ -34,7 +34,7 @@ ssh [email protected]
 ```
 
 4) The first time you log in, you will see a message talking about the host's
-   authenticity, it's fingerprint and asksing if you wish to continue.
+   authenticity, it's fingerprint and asking if you wish to continue.
 
 ```
 The authenticity of host 'bt007.genomicscourse.com (192.135.232.24)' can't be established.

current-year/practicals/population_genetics/pt-4-map-call.md

@@ -67,8 +67,8 @@ Create a symlink (using `ln -s`) from the reference genome
 ```bash
 2023-10-02-mapping/
 ├── input
-│   ├── -> /shared/data/popgen/reference.fa
-│   └── -> /shared/data/popgen/reads
+│   ├── reads -> /shared/data/popgen/reads
+│   └── reference.fa -> /shared/data/popgen/reference.fa
 ├── results
 ├── tmp
 └── WHATIDID.txt

current-year/practicals/population_genetics/pt-5-popgen.md

@@ -49,8 +49,8 @@ The output of the `tree` command should look like this:
 ```bash
 2023-10-xx-population_genetics
 ├── input
-│   ├── snp.vcf.gz
-│   └── snp.vcf.gz.tbi
+│   ├── snp.vcf.gz -> /home/alice/2024-08-01-genotyping/results/snp.vcf.gz
+│   └── snp.vcf.gz.tbi -> /home/alice/2024-08-01-genotyping/results/snp.vcf.gz.tbi
 └── popgen.Rmd
 ```