Update GitHub actions (#196)

* switched typos check to warning instead of error
* restrict to checking only modified files

Author: bnovak32

.github/workflows/check_typos.yml

@@ -20,3 +20,4 @@ jobs:
               check_filenames: true
               skip: "*.yml,*.cff,*.js,*.lock"
               ignore_words_list: RNAseq
+              only_warn: 1

.github/workflows/markdown-link-check.yml

@@ -7,4 +7,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@master
-    - uses: gaurav-nelson/github-action-markdown-link-check@v1
+    - uses: tcort/github-action-markdown-link-check@v1
+      with:
+        use-quiet-mode: 'yes'
+        use-verbose-mode: 'yes'
+        check-modified-files-only: 'yes'